Magnetic Effects of Electric Current Class 10 Notes CBSE Science Chapter 13 [Free PDF Download] (2022)

Table of Contents
CBSE Class 10 Science Revision Notes Chapter-wise links Introduction: Magnetic Field: Natural Magnet: Pole: Permanent Magnets: Electromagnetic Induction (EMI): What Causes Mutual Induction? Construction: Working: DC Generator: Direct Current: Domestic Electric Circuits: Domestic Wiring: Electric Fuse: Causes of Damage to Electric Circuits: Comprehensive Question Wise Class 10 Science Notes PDF For Class 10 Science Magnetic Effects of Electric Current Chapter 13 Significance of CBSE Class 10th Helps You in Deciding the Career Path Showcases Your Academic Achievements Helps Students in Better Exam Preparation Helps You Know Your Level and Capabilities Class 10 Physics Magnetic Effects of Electric Current Notes Vedantu’s Class 10 Science Revision Notes Revision Notes Followed Up With the NCERT Guidelines Overview of the Magnetic Effects of Electric Current CBSE Class 10 Chapter 13 Science Introduction Magnets & Magnetism Some Common Facts About Magnets Are Magnetic Field and Field Lines The Concept of Magnetic Field Due to a Current Through a Straight Conductor The Right-Hand Thumb Rule Magnetic Field Due to a Current Through a Circular Loop Magnetic Field Due to a Current in a Solenoid Force on a Current-Carrying Conductor in a Magnetic Field Electric Motor Electromagnetic Induction Electric Generator Why Should You Choose Vedantu? Chapter 13 Magnetic Effects of Electric Current Intext Question and Answers On Page No. 224 in NCERT Science Textbook There Will Be the First Question. Now, on Page No. 228 in NCERT Science Textbook There Will Be Another Exercise Having 3 Different Questions. On Page No. 229 and 230 in NCERT Science Textbook There Will Be Another Exercise Having 3 Different Questions. On Page No. 231 and 232 in the NCERT Science Textbook, There Will Be Another Exercise Having 3 Different Questions. Expert Teachers Curating Class 10 Notes Liberty to Have One on One Session With Top Academic Experts Access to Sample Papers, Important Question & Mock Test Download Revision Notes for Free in the PDF Format Other Related Links

CBSE Class 10 Science Revision Notes Chapter-wise links

Check out the links given below to view and download the revision notes for the other chapters in CBSE Class 10 Science syllabus. Each of these has been developed by Vedantu’s expert teachers keeping in mind the important areas and the need of the students during revision time.

  • Chapter 1 - Chemical Reactions and Equations

  • Chapter 2 - Acids, Bases and Salts

  • Chapter 3 - Metals and Non-metals

  • Chapter 4 - Carbon and Its Compounds

  • Chapter 5 - Periodic Classification of Elements

  • Chapter 6 - Life Processes

  • Chapter 7 - Control and Coordination

  • Chapter 8 - How do Organisms Reproduce?

  • Chapter 10 - Light Reflection and Refraction

  • Chapter 11 - Human Eye and Colourful World

  • Chapter 12 - Electricity

  • Chapter 13 - Magnetic Effects of Electric Current

  • Chapter 14 - Sources of Energy

  • Chapter 15 - Our Environment

  • Chapter 16 - Management of Natural Resources

Introduction:

  • A magnet is a material that has the ability to attract metals such as iron, nickel, cobalt, and steel. There are two poles to a magnet: north and south.

  • When liberated, the two poles pursue the earth's north and south poles. Each component becomes a magnet when broken into parts.

Magnetic Field:

  • A magnetic field is the area around a magnet where its influence can be felt by any other magnetic element.

  • The magnetic field is measured in Tesla or \[\text{Weber/}{{\text{m}}^{\text{2}}}\]units.

  • Lines of Magnetic Fields

  • Externally, magnetic field lines exit the north pole of a magnet and enter the South Pole, forming closed loops.

  • At the poles, where the magnetic field strength is greatest, magnetic field lines are nearest. There are no magnetic field lines that cross one other.

  • The tangent at a place indicates the direction of the magnetic field at that point.

Natural Magnet:

  • Magnetite or Lodestone (\[\text{F}{{\text{e}}_{\text{3}}}{{\text{O}}_{\text{4}}}\]), a naturally occurring black iron ore, is a natural magnet.

Oersted’s Experiment:

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  • The needle has been deflected, indicating that an electric current has caused a magnetic effect across the copper wire.

  • As a result, we can say that electricity and magnetism are intertwined.

Magnet in a Magnetic Field:

  • When a magnet is placed in a magnetic field, it aligns itself along the field lines with the North Pole facing the magnetic field's direction of travel.

  • Due to the contents of the earth, a magnetic field exists on its surface, causing it to behave like a magnet. As a result, a magnetic needle is employed to determine the direction on the earth's surface.

Magnetic Field Around a Current Carrying Straight Conductor:

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When the current in the copper wire is altered, the needle deflection varies as well. In reality, as the current rises, the deflection rises with it.

It means that when the current through the wire increases, the magnitude of the magnetic field produced at a given spot grows.

Magnetic Field Around a Current Carrying Circular Conductor:

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A current-carrying wire's magnetic field at a particular place is directly proportional to the current flowing through it.

The field produced by a circular coil with n turns is n times larger than that produced by a single turn.

Magnetic Field Due To a Solenoid:

A solenoid is a coil comprising several circular turns of insulated copper wire wrapped tightly in the shape of a cylinder.

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A solenoid's magnetic field lines are seen in the diagram below. The solenoid's one end acts as a magnetic north pole, while the other acts as a magnetic south pole.

Pole:

Inside the solenoid, the field lines are in the shape of parallel straight lines. This means that the magnetic field inside the solenoid is the same at all places. That means, the field inside the solenoid is uniform.

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Rules for Determining Direction of Magnetic Field:

  • The direction of the curled fingers points in the direction of the magnetic field if a straight conductor is clutched in the palm of the right hand with the thumb pointing along the path of current flow.

  • For circular conductors, use the right hand thumb rule.

  • The thumb points in the direction of the magnetic field if the circular current's direction matches with the curled fingers' direction.

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Magnetic Effects of Electric Current Class 10 Notes CBSE Science Chapter 13 [Free PDF Download] (7)

The Cork Screw Rule of Maxwell:

If the current through a conductor is represented by the direction of linear motion of a corkscrew, then the magnetic field is represented by the direction of rotation of the corkscrew.

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Ampere’s Swimming Rule:

If a guy swims along a current-carrying wire with his face constantly facing the magnetic needle, current entering his feet and exiting his head, the magnetic needle's North Pole will always be deflected towards his left hand.

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Magnetizing a Material:

The material can exhibit magnetic properties once it has been magnetised.

Permanent Magnets:

A permanent magnet is one that retains its magnetic properties after it has been magnetised. This is a property of steel.

Electromagnets and Their Applications:

  • When a piece of magnetic material, such as soft iron, is placed inside the coil, a strong magnetic field produced inside the solenoid can be used to magnetise it.

  • An electromagnet is a magnet that has been formed in this way.

  • Electric bells, loudspeakers, telephone diaphragms, and electric fans all use electromagnets.

  • Cranes also employ massive electromagnets to transport large loads.

Force on Current Carrying Conductor in a Magnetic Field:

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When a current-carrying conductor is put in a magnetic field, it is subjected to a force. When the current in the conductor is reversed, the direction of force is reversed as well.

Fleming’s Left Hand Rule:

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When the thumb, forefinger, and middle finger of the left hand are held perpendicular to each other, with the forefinger pointing in the direction of the magnetic field and the middle finger pointing in the direction of the current, the thumb points in the direction of the force exerted on the conductor, according to Fleming's left hand rule.

Electric Motor:

A device that converts electrical energy into magnetic energy is known as an electric motor.

DC Motor:

Principle: Torque acts on a rectangular coil carrying electricity when it is put in a magnetic field, causing it to revolve continually.

When the coil spins, the shaft connecting to it rotates as well, allowing it to perform mechanical tasks.

Construction and Working:

Parts of a DC Motor

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Armature:

A rectangular coil of insulated copper wire wound on a soft iron core makes up a D.C. motor. The armature is made up of this coil coiled on a soft iron core. The coil is positioned between the cylindrical concave poles of a magnet and is mounted on an axle.

Commutator:

A commutator is a device that reverses the direction of current flow. A commutator is a copper ring that is divided into two sections, C1 and C2. The split rings are installed on the motor's axle and are shielded from one another. These rings are attached to the coil's two ends. They spin in time with the coil. A battery is linked to the commutator rings. The cables from the batteries are attached to the brushes, which are in touch with the rings, rather than the rings themselves.

Brushes:

The Operation of a DC Motor:

When the coil is turned on, it creates a magnetic field surrounding the armature. Rotation is caused by the left side of the armature being pushed away from the left magnet and attracted towards the right.

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The brushes lose contact with the commutator as the coil turns through$90{}^\circ $, and the current stops flowing through the coil.

The coil, on the other hand, continues to turn due to its own momentum.

When the coil passes past $180{}^\circ $, the sides are switched. As a result, commutator ring C1 now contacts brush B2, whereas commutator ring C2 contacts brush B1. As a result, the current keeps flowing in the same direction.

The Efficiency of the DC Motor Increases by:

  • Increasing the coil's number of turns.

  • Increasing the current's strength.

  • Increasing the coil's cross-sectional area.

  • Increasing the radial magnetic field's strength.

Electromagnetic Induction (EMI):

Electromagnetic induction is a phenomena in which an emf or current is induced in a conductor as a result of a change in the magnetic field around the conductor.

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The English physicist Michael Faraday was the first to demonstrate that a magnet may generate a current.

He tested this by moving a magnet in front of a coil of wire linked to a galvanometer.

He noticed a deflection in the galvanometer, indicating that it had been induced by a current.

Induced current is the current generated by the relative motion of the coil and the magnet.

Electromagnetic induction is a phenomena in which an emf or current is induced in a conductor as a result of a change in the magnetic field around the conductor. By moving a bar magnet in and out of a coil of wire, Faraday came to a few conclusions.

Experiment:

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Observation:

The current is induced in the coil due to the relative motion between the magnet and the coil, as indicated by the deflection in the galvanometer.

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Observation:

When the identical pole of the magnet is moved in the other direction, the deflection in the galvanometer is reversed.

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Observation:

The galvanometer pointer returns to zero, indicating that the deflection in the galvanometer will remain as long as the magnet and coil are in relative motion.

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Observation:

When the opposite pole is moved in the same direction, the deflection in the galvanometer is reversed.

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Observation:

The number of turns in the coil affects the deflection in the galvanometer; the more turns in the coil, the higher the deflection. Because the magnetic field travels around each loop of wire in the coil, the magnetic field changes more as the number of coils increases. In and out of the coil, the magnet moves quicker. If the magnet is moved faster, the deflection is greater. That is, when the magnet moves quicker, the rate at which the current is induced increases.

Mutual Induction:

  • Mutual induction is the phenomenon of producing induced emf in one coil as a result of a current shift in an adjacent coil. To further comprehend this, let us conduct an experiment.

  • As indicated, place two coils P and S near to one other.

  • Connect the primary coil P to a battery and a key, and the secondary coil S to a sensitive galvanometer G.

  • The galvanometer shows a deflection whenever the key is pressed or released. By pressing and releasing the key, you can now see the deflection of the galvanometer needle. Because the current passing through the first coil causes a current in the secondary coil, the needle deflects.

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What Causes Mutual Induction?

  • When you hit the key K, current begins to flow through the coil P, increasing the magnetic flux associated with P.

  • Because S is so close to P, the magnetic flux associated with S increases as well. Induced emf and, as a result, induced current are produced in S.

  • According to Lenz's law, the arrow marked 1 indicates the direction of induced current in S.

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  • When the key is released, the magnetic flux associated with the coils drops, causing induced current to flow in the direction indicated by the arrow marked 2. The development of induced emf in the secondary coil during the make or break of current in the primary coil is known as mutual induction.

Rules for Determining the Direction of Induced Current:

  • Fleming's Right Hand Rule can be used to determine the direction of induced current.

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  • Stretch the right hand's forefinger, middle finger, and thumb such that they are all perpendicular to one another. The direction of the magnetic field is shown by the forefinger, the direction of conductor motion is indicated by the thumb, and the direction of induced current in the conductor is indicated by the middle finger.

  • The above-mentioned phenomenon is used to power the electric generator.

The Right Hand Rule of Fleming:

  • Fleming's Right Hand Rule - Stretch the right hand's forefinger, middle finger, and thumb such that they are all perpendicular to one other.

  • The direction of the magnetic field is shown by the forefinger, the direction of conductor motion is indicated by the thumb, and the direction of induced current in the conductor is indicated by the middle finger.

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Electric Generator (AC):

  • Mechanical energy is converted into electrical energy by the electric generator.

  • DC and AC generators are the two types of generators:

  • A cycle dynamo and a car dynamo are both examples of DC generators. They generate DC.

Generators - Generators - Generators - Generators - Generators In Power Plants and Industries, Generators or Alternators are Utilised to Generate AC.

The Basics of an AC Generator:

When a straight conductor is rapidly moved in a magnetic field, it induces a current in the conductor. It is based on the electromagnetic induction phenomena.

Construction:

The AC Generator's Main Components:

A magnet with concave cylindrical poles, an armature, and a current collecting system make up an AC generator.

Slip rings and brushes make up the present collection system.

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  • Armature is a soft iron core around which a coil of insulated copper wire with a large number of turns is coiled. Magnetic poles are cylindrical and concave. A radial magnetic field is created by the concave poles.

  • The armature's ends are joined by two slip rings. They spin in time with the coil. Metal slip rings that are isolated from one other are used.

  • There are two carbon brushes, B1 and B2. Each brush has one end that is connected to an external circuit and the other end that is in touch with the rotating slip rings. Brushes are linked to a galvanometer and do not revolve with the coil in this case.

  • A diesel engine, flowing water, steam, or high-speed wind rotate the axle mechanically from the outside.

Working:

  • The armature changes its relative orientation with respect to the magnetic field as it rotates along an axis perpendicular to the field.

  • As a result, the flux is constantly altering over time.

  • An emf is produced by a shift in magnetic flux.

  • An electric current passes through the armature if the outer terminals are linked to an external circuit.

  • The galvanometer needle deflection indicates that an emf has been induced. After every half rotation of the coil, the direction of the induced emf is reversed.

  • As a result, the current changes direction twice in one coil revolution.

Take a Look at the Diagram Below to See How the Direction of Current Changes:

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  • Alternating current is a type of current that alternates its direction at regular intervals (AC).

  • A split-ring type commutator must be utilised to create a direct current (DC) generator. One brush is always in contact with the arm travelling up in the field, while the other brush is always in contact with the arm travelling down. In such a generator, a unidirectional current is generated.

  • The frequency of the AC current produced in India is 50 hertz (Hz). The coil rotates at a rate of 50 revolutions per second for one second. In one second, the current changes direction 100 times in 50 rotations.

DC Generator:

  • The output generated here is one-way.

  • To do this, the slip rings are replaced with split rings.

  • A split-ring type commutator must be utilised to create a direct current (DC) generator. One brush is always in contact with the arm travelling up in the field, while the other brush is always in contact with the arm travelling down. In such a generator, a unidirectional current is generated.

  • alternating current.

Direct Current:

DC, occurs when the current flows in the same direction. The current generated by a cell or battery is one-way. As a result, it's a DC source. In an electrical circuit, it is represented as:

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The Voltage V/s Time Graph for a DC Source is Represented as Follows:

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The +ve and -ve terminals are fixed.

Alternating Current:

  • Alternating current is defined as a current that changes direction at regular intervals.

  • The majority of power plants produce AC current.

  • In an electrical circuit, it is represented as:

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The Voltage V/s Time Graph for an AC Source is Represented as Follows:

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The current changes direction every half cycle, hence there are no stable terminals.

Domestic Electric Circuits:

Electric power is typically generated in locations that are remote from where it is consumed. Electricity is generated at 11,000 volts at the generating station. This voltage alternates at a 50 Hz frequency.

To reduce energy loss during transmission, power is transported over long distances at high voltage.

Domestic Wiring:

The live wire, neutral wire, and earth wire are the three wires that bring electricity into our home. We use a colour code for insulating these wires to minimise confusion. The live wire is red, whereas the neutral wire is black. The earth cable is insulated with green plastic. The live wire has a 220 volt potential, while the neutral wire has no potential. As a result, the potential difference between the live and neutral wires is 220 volts.

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  • The earth wire is constructed of copper and is substantially thicker. It's connected to a copper plate buried deep underground on one end. The earth is connected to the electric metre, which is subsequently connected to the main switch.

  • Electricity is delivered to our homes via a main supply, which is either supported by above electric poles or underground wires.

  • The live and neutral wires from the electric pole enter a box with a primary fuse F1 installed directly outside our house. The live wire is linked in series with the fuse. This is because the live wire is the sole one with a high potential of 220 volts, whereas the neutral wire has no potential.

  • F1 has a high amperage rating of roughly 50 amperes. As a result, it prevents any damage to the entire electrical wiring entering the house, such as fire, caused by a short-circuit or overload.

  • The two lines then enter the electricity metre, which keeps track of how much electricity we use in kilowatt-hours (kWh). The electric supply department of our city erected this metre.

  • The two wires that emerge from the metre are then connected to a main switch in a distribution box. For customer safety, another fuse F2 is connected in series with the live wire in this box.

  • In a house, there are two different circuits: lighting circuit and power circuit. The lighting circuit, which uses a 5 A fuse, is used to power electric bulbs, fans, radios, TVs, and tube lights, while the power circuit, which uses a 15 A fuse, is used to power electric heaters, electric irons, geysers, and refrigerators, among other things.

  • The distribution circuits are always linked together in parallel. Even if a defect or short-circuiting occurs in one line of a parallel circuit, the corresponding fuse blows, keeping the other circuits and appliances intact and preventing damage to the entire house. The power-fuse will blow if a short-circuit happens in the power circuit, but our lights will continue to burn because the lighting circuit is untouched.

  • All other electrical equipment can use the main line's steady voltage. As illustrated in the diagram, in addition to the two wires, a third wire known as the ground wire enters our home.

  • The earth is connected to the electric metre first, and then to the main switch. This cable, together with the live and neutral wires, is then run into the rooms.

Electric Fuse:

  • The term "electric fuse" refers to a device that limits the current in an electric circuit. The fuse protects the circuit as well as the electrical equipment from damage.

  • The fuse wire is usually made of a lead and tin alloy. It has a low melting point and will break the circuit if the current is too high. The maximum current allowed across the circuit determines the thickness and length of the fuse wire.

  • In the beginning of the electric circuits, it is connected in series.

  • The fuse wire becomes heated and melts when the circuit current exceeds a preset value owing to voltage variations or short-circuiting. As a result, the connection is broken as illustrated in the diagram, and no current flows. The appliance will not be damaged as a result of this.

Causes of Damage to Electric Circuits:

Overloading

  • When a significant number of high-power electrical appliances (such as an electric iron or a water heater) are turned on at the same time, the circuit draws an enormous amount of current. This is known as overloading, and it can lead to overheating of the wire and a fire. It can also occur as a result of an unintentional increase in supply voltage.

Short-circuiting:

  • When the live and neutral wires of an electric circuit come into direct touch, a short circuit develops. The wires may come into contact with each other due to a faulty connection or the insulation wearing away. This condition causes the wires to overheat, resulting in a fire.

Earthing of Electrical Appliances:

The metal of an electrical equipment is 'earthed' to prevent electric shocks. The term "earthed" refers to a metal wire (copper) that connects the appliance's metal case to the earth (at zero potential). The earth wire has one end that is buried deep in the ground and the other end that is attached to the three pin socket.

The metal casing of the electrical appliance will remain at zero potential when it is switched on because it is in contact with the earth wire in the three pin socket. It thereby protects us from receiving an electric shock even if we unintentionally contact it.

Comprehensive Question Wise Class 10 Science Notes

Vedantu’s Magnetic Effects of Electric Current Class 10 notes are the comprehensive notes which cover all the latest syllabus of NCERT and CBSE as per the guidelines. These solutions would help you to perform better and score higher marks in the final Class 10 Science board examinations. With the help of Magnetic Effects of Electric Current Class 10 notes, you can eliminate the fear of upcoming Science exams and concentrate on clearing each and every concept of Chapter 13 – Magnetic Effects Of Electric Current. This way, you will be able to pass your Class 10 CBSE Board Science examination with the flying colours.

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PDF For Class 10 Science Magnetic Effects of Electric Current Chapter 13

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Significance of CBSE Class 10th

CBSE 10th board exams make a significant impact in the lives of all students. The mark scored in this specific academic year makes a lot of sense in the life of the student later on. But a maximum number of students fear these Class 10th CBSE Board exams which actually give them nightmares. As a matter of fact, this extreme hype leads to bad performance in board examinations and low marks. However, this should not happen because there is so much importance of Class 10 board exams in the academic career of the student. Let’s get to know the importance of Class 10 board exams briefly.

Helps You in Deciding the Career Path

The most important thing is that the marks of Class 10th are going to decide the career path and subject stream; commerce, medical, non-med or arts. More so, on the basis of these marks, you are going to get admission in higher school. In short, the Class 10th result is going to help you make the right decision for your future.

Showcases Your Academic Achievements

The overall marks scored in Class 10th are going to act as a key factor in deciding higher secondary schools ahead. In addition to this, a Class 10th board exam holds an important part in your resume showcasing your academic achievements and performances. Good marks can actually act as one career changer factor in the life of any student.

Helps Students in Better Exam Preparation

Board exams of Class 10th make every student mentally strong and make them manage tension and stress calmly. The truth is that – once you have passed and appeared in CBSE board examinations, you will get the confidence to face a higher level of exams ahead. Despite this, you will also get to learn how to handle pressure in some unfavourable situations.

Helps You Know Your Level and Capabilities

The Class 10 board exams are an ideal criterion to signify a student’s skills and learning abilities. In fact, with 10th class marks, you will get to know where you stand among other students and what the areas where you need to work harder are. An exceptionally good performance will give you a great push to work harder in the upcoming time and exams as well.

Understanding the importance of Class 10th CBSE board examinations, you must start preparing for it effectively and perform well in the upcoming board exams. Also, never ever get worried because of these exams. Just be relaxed, calm, and prepare well to score well in your Class 10 CBSE boards.

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Overview of the Magnetic Effects of Electric Current CBSE Class 10 Chapter 13 Science

Before getting into the details of Class 10 Science Chapter 13 Magnetic Effects Of Electric Current, let us get to know the overview of topics and subtopics.

Topic 1 - Magnetic Effects Of Electric Current

Topic 2 – Magnetic Field And Field Lines

Topic 3 – Magnetic Field Due To A Current Carrying Conductor

Topic 4 – Force On A Current Carrying Conductor In A Magnetic Field

Topic 5 – Electric Motor

Topic 6 – Electromagnetic Induction

Topic 7 – Electric Generator

Topic 8 – Domestic Electric Circuits

For the better and more understandable knowledge of the concepts included in Chapter 13, Magnetic Effects Of Electric Current, our NCERT solutions cover all the necessary & basic concepts.

Introduction

Since we already know, Electricity and magnetism are two different sides of one coin. These two terms are closely in relation with one another. But in this Class 10 Chapter – 13 we need to focus on the magnetism produced due to the Electricity and also on the Electricity produced due to the magnetism. But for this, we need to have a study about the magnets and their different properties.

Earlier, we learned little about the Electricity and got to know how it is produced at all the points around it. In the same way, magnets also produce a magnetic field at all the points around it. Primarily, in Chapter 13, we shall study the Magnetic Effects of Current.

In Chapter 13, you will learn how an Electric Current-carrying wire acts as a magnet. But we already know this; well, in this Class 10 science chapter, we would learn about the presence of a magnetic field on a Current-carrying wire.

Magnets & Magnetism

  • Magnets have been carrying so much curiosity with it for a long time. You may find magnets at numerous places such as in labs, laboratories, toys, magnetic stickers and so on.

  • Wondering what this magnet is? The substances that have the attracting nickel, iron & cobalt are called magnets. More so, this property of attraction is known to be magnetism.

  • There are so many metals such as silver, gold, aluminium that are not attracted to magnets.

  • Well, these magnets are naturally found in varied natural rocks by numerous methods.

Man-made magnets come in different shapes like U shaped, rectangular piece, compass and needle.

Some Common Facts About Magnets Are

  • A magnet always aligns in the north-south direction whenever freely suspended.

  • Opposite poles always attract one another and like poles always repel one another.

  • Magnets always exist as dipole always.

  • No one can separate two different poles of magnet even if you cut it.

Magnetic Field and Field Lines

Magnetic field and field lines are the main portions of the ch 13 science Class 10 notes. The magnetic field is nothing but a quantity carrying both direction and magnitude. The magnetic field takes a similar direction in which the north pole of the compass needle moves inside it. Hence, conventionally, it is assumed that the North Pole field lines merge at the South Pole. The direction of the field lines is from its south pole to its north pole inside the magnet. The above-mentioned phenomenon shapes the magnetic field lines as closed curves.

Notes of the magnetic effect of current Class 10 also justify the relative strength of the magnetic field. The degree of closeness of the field lines derives from the relative strength of the magnetic field.

According to the notes of the magnetic effect of electric current Class 10, two field lines do not cross each other. As per statistical viewpoint, the intersection of two magnetic field lines may be considered an impossible event.

The Concept of Magnetic Field Due to a Current Through a Straight Conductor

Class 10 science ch 13 notes of Vedantu rightly depict the phenomenon of the magnetic field due to a current through a straight conductor. If the current through the wire increases, the magnitude of the magnetic field produced at a given point also increases.

Chapter 13 science Class 10 notes also explain the fact that the concentric circles representing the magnetic field around a current-carrying straight wire turn bigger and bigger as we move away from it.

The Right-Hand Thumb Rule

You can acquire the proper idea about the famous Right-Hand Thumb Rule if you go through the notes of ch 13 science Class 10. It is one of the most convenient ways to find out the direction of the magnetic field correlated with a current-carrying conductor as per the following figure.

(image will be uploaded soon)

Magnetic Field Due to a Current Through a Circular Loop

Class 10 Chapter 13 science notes of Vedantu also give a picturesque idea about the magnetic field due to a current through a circular loop. The concentric circles signifying the magnetic field around it would turn out to be bigger and bigger as we move away from the wire at each and every point of the current-carrying circular loop. At the time of reaching the middle of the circular loop, the arcs of the bigger circles would become straight lines.

As per the Chapter 13 Class 10 science notes, a circular coil having “n” turns, the field created is “n” times as large as that created by a single turn.

Magnetic Field Due to a Current in a Solenoid

If you study the notes of Chapter 13 Science Class 10 minutely, you will find that the magnetic field is identical at all points inside the solenoid. That indicates that the field is uniform inside the solenoid.

Force on a Current-Carrying Conductor in a Magnetic Field

Class 10th Science Chapter 13 Notes points out that a force is produced on the current-carrying aluminium rod when it is placed in a magnetic field. The direction of the force, however, gets reversed when the direction of the current through the conductor is reversed.

Electric Motor

If you follow the ch 13 Class 10 science notes you will get to know that a rotating device that transfers electrical energy into mechanical energy is termed as Electric Motor.

Electromagnetic Induction

Class 10 science notes Chapter 13 lucidly explain the Electromagnetic Induction. The procedure in which a conductor is placed in a particular position and magnetic field keeps changing or magnetic field is fixed and the conductor is moving is termed Electromagnetic Induction.

Electric Generator

The motion power is converted into electrical power through the electric generator. You will also find the sources of mechanical energy in Class 10 Science Notes Chapter 13. There are several sources of mechanical energy such as steam turbines, gas turbines, water turbines, internal combustion engines, wind turbines and even hand cranks.

Why Should You Choose Vedantu?

There are Numerous Reasons Behind Choosing Vedantu for Accessing Class 10 Chapter Magnetic Effect of Electric Current Notes. Those are as Follows:

  • The notes provided to you are designed by the experienced and highly skilled professors of Vedantu.

  • If you want proper and authentic guidance in preparation for the CBSE Class 10th exam, Vedantu should be your choice as the materials are purely exam-oriented.

  • The study materials available here are developed fully according to the basic CBSE guidelines.

  • At the end of the chapter, you will also find the previous year questions of the particular chapter.

  • Class 10 Science Chapter 13 notes are available in PDF format on the official website of Vedantu.

  • You can download the notes and can take printouts for future reference.

In the above article, we have touched upon almost every crucial topic of the chapter Magnetic Effect of Electric Current. You must go through the ch 13 science Class 10 notes to secure good marks in the exam. In today’s era of online learning, Vedantu is the best companion you can trust.

Chapter 13 Magnetic Effects of Electric Current Intext Question and Answers

On Page No. 224 in NCERT Science Textbook There Will Be the First Question.

Question Number 1 – Why does a compass needle get deflected when brought near a bar magnet? In this, you will be required to answer with the right reason, and for this, you need to get the concept very clearly. For that, you can consider going through our Class 10 Science Magnetic Effects of Electric Current Notes.

Now, on Page No. 228 in NCERT Science Textbook There Will Be Another Exercise Having 3 Different Questions.

Question Number 1 – Draw magnetic field lines around a bar magnet? For this, you will require making a diagram having magnetic lines around a magnet.

Question Number 2 – List the properties of magnetic lines of properties. To get the maximum marks from the examiner, you will be required to answer the top and best properties of magnetic lines of force.

Question Number 3 – Why don’t two magnetic lines of force intersect each other? In answer to this, you will be required to give the right reasons by giving some examples.

On Page No. 229 and 230 in NCERT Science Textbook There Will Be Another Exercise Having 3 Different Questions.

Question Number 1 – Consider a circular loop of wire lying on the plane of the table. Let the Current pass through the loop clockwise. Apply the right-hand rule to find out the direction of the magnetic field inside and outside the circle? Well, to answer this question, getting the entire concept clear in mind holds great importance.

Question Number 2 – The magnetic field in a given region is uniform. Draw a diagram to represent it? To be honest, this is an important question which is already there in previous year question papers of the Class 10 Science exam. Make sure to answer it after applying your effective thoughts and logic to it.

Question Number 3 – Choose the correct option.

The magnetic field inside a long straight solenoid-carrying Current:

  • Is zeroDecreases as we move towards its end

  • Increases as we move towards its end

  • Is the same at all the points.

Well, after applying all the concepts; the answer to this question would be the (iv) option.

On Page No. 231 and 232 in the NCERT Science Textbook, There Will Be Another Exercise Having 3 Different Questions.

Question number 1 – Which of the following properties of a proton can change while it moves freely in a magnetic field. (There may be more than one correct answer.)

  • Mass

  • Speed

  • Velocity

  • Momentum

You will only be able to answer the right answer after understanding the thorough concepts. The right answer to this NCERT question would be both (iii) and (iv) option.

Question Number 2 – In Activity 3.7 how do we think the displacement of rod AB will be affected if (i) Current in rod AB is increased (ii) a stronger horseshoe magnet is used, and (iii) length of the rod AB is increased? Well, in order to give the answers to these three different cases, you would surely need to understand the thorough concepts, then only you can provide the answers to these NCERT questions.

Question Number 3 – A positively charged particle (alpha particle) projected towards the west is deflected towards the north by a magnetic field.

The direction of the magnetic field is –

  • Towards south

  • Towards east

  • Downward

  • Upward

In order to answer this question, you will be required to analyze the complete situation, apply logic and give the right answer. Well, in this case, the correct answer is option number (iv) because of its definite reasons.

Just like this, there would be many other exercise and textbook questions you need to prepare well for. Note that it is absolutely important to understand every concept included in the NCERT Textbook to score and higher marks in Class 10th Science exam CBSE Board. And in order to get the best help out in it, it is important to prepare for the exam through Vedantu’s Notes of Magnetic Effect of Electric Current Class 10.

The well expert team of professionals formulated Chapter 13 Class 10 Science Notes keeping every important thing in their consideration. Each and every guideline adhered to by CBSE has been held in thought while curating this magnetic effect of Electric Current Notes Class 10.

Expert Teachers Curating Class 10 Notes

Vedantu and its experts understand entirely how vital are Class 10th CBSE examinations for you and this is why we strive really hard to provide you with the most genuine, simple to understand and effective Notes of the Magnetic Effect of Current Class 10.

In case, if there is any certain concept in the science textbook of Class 10th which is not completely clear to you then just consider referring to our notes to get the best help out.

Liberty to Have One on One Session With Top Academic Experts

Class 10th Science CBSE board exam on the head and still there are some concepts of Chapter 13 – Magnetic Effects of Current that are not cleared to you? No worries; Vedantu’s Chapter 13 Science Class 10 Notes can really help you understand every concept you wish to. You just require getting access to these solutions, and there you will find the step to step information about all the concepts. More so, this step to step information approach will really help you to understand every topic clearly.

However, if there is still any specific topic you are not getting and understanding with our notes, then you have the complete liberty to have a one on one session concerning science Chapter 13 with our subject experts. In these one to one sessions, you can question and clear you any doubt and ensure you are cleared up with every NCERT exercise concept.

Access to Sample Papers, Important Question & Mock Test

Vedantu team regularly conducts mock tests for Class 10th CBSE students to make sure you are completely and thoroughly prepared for your science exam. In addition to this, our team totally believes in the proverb “practice makes a person perfect”, and this makes us conduct a regular mock test. This way, you can get to know the level on which you are standing and the areas where you are lacking. Giving our mock test is the best possible way to ensure everything included in Chapter 13 is completely clear to you, and you will be able to reward yourself with the maximum marks in the final science exam.

In addition to providing the NCERT solutions for chapter Magnetic Effects of Electric Current, our experts will also provide you with the important topics; previous year solved Science question paper and a lot more to make sure everything in the chapter has got covered. This way, you will be sure to face your Science exam with confidence and score good marks.

You can also download NCERT Maths Class 10 to help you to revise complete syllabus and score more marks in your examinations.

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