NCERT Solutions For Class 12 Physics Chapter 6: Electromagnetic Induction

Education Journalist | Study Abroad Strategy Lead

NCERT Solutions for Class 12 Physics Chapter 6 Electromagnetic Induction are provided in this article. Electromagnetic Induction is a current produced due to the production of voltage (electromotive force) as a result of a changing magnetic field. The production of voltage is further influenced by many factors.

Chapter 6 Electromagnetic Induction is a part of Unit 4 Electromagnetic Induction and Alternating Currents which along with Unit 3 Magnetic Effects of Current and Magnetism has a weightage of 17 marks in the CBSE Class 12 Examination. The NCERT Solutions for Class 12 Physics Chapter 6 deals with concepts of electromagnetic induction formula, inductance applications of electromagnetic induction, eddy currents, etc.

Download PDF: NCERT Solutions for Class 12 Physics Chapter 6

NCERT Solutions for Class 12 Physics Chapter 6

NCERT solutions for class 12 physics chapter 6 Electromagnetic Induction are given as below –

NCERT Solutions

Read More: Electromagnetic Induction MCQ

Previous Year Questions Questions on Lenz Law : Lenz’s law is consequence of the law of conservation of….. [UPSEE 2019] The magnetic field is increasing at a constant rate. The directions of induced current in wires AB and CD are…. [VITEEE 2019] the circular loop of wire is moved with velocity towards the infinite current carrying wire…… [VITEEE 2016] Two identical coaxial coils P and Q carrying equal amount of current in the same direction are brought nearer. The current in...[KEAM] The polarity of induced emf is given by….[KEAM] Questions on Electromagnetic Induction: If a transformer of an audio amplifier has output impedance 8000 0 and the speaker has input impedance…...[JCECE 2005] A conducting loop in the shape of a right angled isosceles triangle of height 10cm10cm is kept such that the 90^∘ vertex is…..[JEE Advance 2016] A 10m long horizontal wire extends from North East to South West. It is falling with a speed of 5.0ms⁻¹……. [ JEE Main 2019] If a current of 2.0A2.0A flows through the smaller loop, then the flux linked with bigger loop is…… [JEE Main 2013] A coil of cross-sectional area A having n turns is placed in a uniform magnetic field B….. [JEE Main 21018] A copper rod of mass m slides under gravity on two smooth parallel rails, with separation ll and set at an angle of θ with the horizontal….. [JEE Main 2018] A copper wire is wound on a wooden frame, whose shape is that of an equilateral…. [JEE Main 2019] A metallic rod of length ll is tied to a string of length 2l and made to rotate with angular speed…. [JEE Main 2013] A square frame of side 10 cm and a long straight wire carrying current 1 A are in the plane of the paper…. [JEE Main 2014] If the rod makes n rotations per second, then the time averaged magnetic moment of the rod is… [JEE Main 2019] Figure shows a circular area of radius R where a uniform magnetic field…. In a coil of resistance 100Ω , a current is induced by changing the magnetic flux through it….. [JEE Main 2017] When current in a coil changes from 5A to 2A…. [JEE Main 2015] Questions on Faradays laws of induction: Two identical circular coils A and B are kept on a horizontal tube side by side without touching each other…. [KCET 2013] The magnetic flux through a circuit of resistance RR changes by an amount….[NEET 2004] A conducting loop in the shape of a right angled isosceles triangle of height...[JEE Advance 2016] If a transformer of an audio amplifier has output impedance…..[JCECE]

Class 12 Physics Chapter 6 Electromagnetic Induction – Important Topics

Electromagnetic Induction is the current that is produced by electromotive force or EMF when a magnetic field is continuously changing.

According to Faraday’s law, the amount of voltage that is induced in a coil is proportional to the number of turns of the coil and the rate of changing the magnetic field.

When e refers to the induced voltage, N to the number of turns in a coil, Φ is the magnetic flux, and t is time, then the voltage that is induced can be found by –

e = N × dΦ/dt

The production of voltage is influenced by various factors such as – the number of coils and changing magnetic field.

Number of Coils: The induced voltage is directly proportional to the number of coils of the wire.
Changing Magnetic Field: Changing magnetic field also affects the induced voltage by either moving magnetic field around the conductor or moving the conductor in the magnetic field.

Electromagnetic Induction is produced when we either place the conductor in a changing magnetic field or the conductor constantly moves in a stationary field.

Electromagnetic induction is used in the working of an AC generator and transformers.

Previous Year Questions Questions on Lenz Law: Lenz’s law is consequence of the law of conservation of….. [UPSEE 2019] The magnetic field is increasing at a constant rate. The directions of induced current in wires AB and CD are…. [VITEEE 2019] the circular loop of wire is moved with velocity towards the infinite current carrying wire…… [VITEEE 2016] Two identical coaxial coils P and Q carrying equal amount of current in the same direction are brought nearer. The current in...[KEAM] The polarity of induced emf is given by….[KEAM] Questions on Electromagnetic Induction: If a transformer of an audio amplifier has output impedance 8000 0 and the speaker has input impedance…...[JCECE 2005] A conducting loop in the shape of a right angled isosceles triangle of height 10cm10cm is kept such that the 90^∘ vertex is…..[JEE Advance 2016] A 10m long horizontal wire extends from North East to South West. It is falling with a speed of 5.0ms⁻¹……. [ JEE Main 2019] If a current of 2.0A2.0A flows through the smaller loop, then the flux linked with bigger loop is…… [JEE Main 2013] A coil of cross-sectional area A having n turns is placed in a uniform magnetic field B….. [JEE Main 21018] A copper rod of mass m slides under gravity on two smooth parallel rails, with separation ll and set at an angle of θ with the horizontal….. [JEE Main 2018] A copper wire is wound on a wooden frame, whose shape is that of an equilateral…. [JEE Main 2019] A metallic rod of length ll is tied to a string of length 2l and made to rotate with angular speed…. [JEE Main 2013] A square frame of side 10 cm and a long straight wire carrying current 1 A are in the plane of the paper…. [JEE Main 2014] If the rod makes n rotations per second, then the time averaged magnetic moment of the rod is… [JEE Main 2019] Figure shows a circular area of radius R where a uniform magnetic field…. In a coil of resistance 100Ω , a current is induced by changing the magnetic flux through it….. [JEE Main 2017] When current in a coil changes from 5A to 2A…. [JEE Main 2015] Questions on Faradays laws of induction: Two identical circular coils A and B are kept on a horizontal tube side by side without touching each other…. [KCET 2013] The magnetic flux through a circuit of resistance RR changes by an amount….[NEET 2004] A conducting loop in the shape of a right angled isosceles triangle of height...[JEE Advance 2016] If a transformer of an audio amplifier has output impedance…..[JCECE]

Also Read:

Chapter 6 Related Articles
Faraday’s Laws of Induction	Electromagnetic Waves	Electromagnetic Spectrum
Electromagnetism	Unit of Magnetic Flux	Wave Nature of Electromagnetic Radiation
Magnetic Flux	Lenz Law and Conservation of Energy	Energy Consideration
Electromagnetic Radiations	Electromagnetic Field	Electromagnetic Pulse

Check-Out:

PCMB Study Guides
NCERT Solutions for Class 12 Physics	Class 12 Physics Notes	Formulas in Physics
Topics for Comparison in Physics	Choice-based questions in physics	Topics in relation to physics
Physics Study Notes	Class 12 Physics Book PDF	Class 12 Physics Practicals
Important Derivations in Physics	SI units in Physics	Important Physics Constants and Units
Class 12 Physics Syllabus	Mendeleev's Periodic Table	NCERT Solutions for Class 12 Biology
NCERT Solutions for Class 12 English	NCERT Solutions for Class 11 Chemistry	Class 12 Chemistry Practicals
Class 12 Chemistry Notes	Important Chemical Reactions	Class 12 Maths Notes
Class 12 PCMB Notes	NCERT Class 12 Biology Book	NCERT Class 12 Maths Book
NCERT Class 12 Textbooks	NCERT Solutions for Class 11 Maths	NCERT Solutions for Class 11 Physics
NCERT Solutions for Class 12 Maths	NCERT Solutions for Class 11 Biology	NCERT Solutions for Class 11 English
NCERT Class 11 Chemistry Book	NCERT Class 11 Physics Book	NCERT Class 11 Biology Book
Class 11 Notes	Important Maths Formulas	Important Chemistry Formulas
Class 11 PCMB Syllabus	Chemistry Study Notes	Biology Study Notes
Periodic Table in Chemistry	Important Chemical Reactions	Comparison topics in Chemistry
Comparison Topics in Maths	Biology MCQs	Important Named Reactions
Maths MCQs	Comparison Topics in Biology	Chemistry MCQs

NCERT Solutions For Class 12 Physics Chapter 6: Electromagnetic Induction

NCERT Solutions for Class 12 Physics Chapter 6

Previous Year Questions

Questions on Lenz Law :

Questions on Electromagnetic Induction:

Questions on Faradays laws of induction:

Class 12 Physics Chapter 6 Electromagnetic Induction – Important Topics

Previous Year Questions

Questions on Lenz Law:

Questions on Electromagnetic Induction:

Questions on Faradays laws of induction:

CBSE CLASS XII Related Questions

1.
The number of turns in the primary and the secondary coil of an ideal transformer are 100 and 5000 respectively. If 3.3 kW power is supplied to the transformer at 220 V, find:
• (I) current in the primary coil
• (II) output voltage

2.
Obtain an expression for the work done to dissociate the system of three charges \(q\), \(-4q\) and \(2q\) placed at the vertices A, B and C respectively of an equilateral triangle of side \(a\).

3.
A student sets up the circuit as shown in the figure to find the value of unknown resistance X and records a set of readings of the voltmeter and the ammeter by using the rheostat.

4.
The electron drift speed is estimated to be only a few mm/s for currents in the range of a few amperes. How, then, is the current established almost the instant a circuit is closed ?

5.
Two cells of emfs 12 V and 6 V are connected in parallel as shown in the figure. Their internal resistances are \(1\,\Omega\) and \(0.5\,\Omega\) respectively. Calculate the emf and internal resistance of the equivalent cell between points A and B.

Similar Physics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

NCERT Solutions For Class 12 Physics Chapter 6: Electromagnetic Induction

NCERT Solutions for Class 12 Physics Chapter 6

Previous Year Questions

Questions on Lenz Law :

Questions on Electromagnetic Induction:

Questions on Faradays laws of induction:

Class 12 Physics Chapter 6 Electromagnetic Induction – Important Topics

Previous Year Questions

Questions on Lenz Law:

Questions on Electromagnetic Induction:

Questions on Faradays laws of induction:

CBSE CLASS XII Related Questions

1.The number of turns in the primary and the secondary coil of an ideal transformer are 100 and 5000 respectively. If 3.3 kW power is supplied to the transformer at 220 V, find: • (I) current in the primary coil • (II) output voltage

2.Obtain an expression for the work done to dissociate the system of three charges \(q\), \(-4q\) and \(2q\) placed at the vertices A, B and C respectively of an equilateral triangle of side \(a\).

3.A student sets up the circuit as shown in the figure to find the value of unknown resistance X and records a set of readings of the voltmeter and the ammeter by using the rheostat.

4.The electron drift speed is estimated to be only a few mm/s for currents in the range of a few amperes. How, then, is the current established almost the instant a circuit is closed ?

5.Two cells of emfs 12 V and 6 V are connected in parallel as shown in the figure. Their internal resistances are \(1\,\Omega\) and \(0.5\,\Omega\) respectively. Calculate the emf and internal resistance of the equivalent cell between points A and B.

Similar Physics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
The number of turns in the primary and the secondary coil of an ideal transformer are 100 and 5000 respectively. If 3.3 kW power is supplied to the transformer at 220 V, find:
• (I) current in the primary coil
• (II) output voltage

2.
Obtain an expression for the work done to dissociate the system of three charges \(q\), \(-4q\) and \(2q\) placed at the vertices A, B and C respectively of an equilateral triangle of side \(a\).

3.
A student sets up the circuit as shown in the figure to find the value of unknown resistance X and records a set of readings of the voltmeter and the ammeter by using the rheostat.

4.
The electron drift speed is estimated to be only a few mm/s for currents in the range of a few amperes. How, then, is the current established almost the instant a circuit is closed ?

5.
Two cells of emfs 12 V and 6 V are connected in parallel as shown in the figure. Their internal resistances are \(1\,\Omega\) and \(0.5\,\Omega\) respectively. Calculate the emf and internal resistance of the equivalent cell between points A and B.