Karnataka 2nd PUC Physics Chapter 6 Important Questions: Electromagnetic Induction

Karnataka 2nd PUC Physics Chapter 6 Important Questions 2027 covers Electromagnetic Induction concepts, formulas, numerical problems, and circuit-based questions. Practise questions on magnetic flux, Faraday’s law, Lenz’s law, motional emf, inductance, and AC generators.

The chapter on Electromagnetic Induction includes magnetic flux, Faraday and Henry experiments, Faraday’s law, Lenz’s law, motional emf, self and mutual inductance, energy stored in an inductor, and alternating current generators. These concepts involve both theoretical questions and numerical problems.

The Karnataka 2nd PUC Physics Chapter 6 Important Questions provide focused practice on these concepts. Solving them can help you revise formulas, understand electromagnetic induction, practise calculations, and identify topics that need further revision.

Karnataka 2nd PUC Physics Chapter 6 Important Questions

Practising questions from Electromagnetic Induction helps you revise the concepts and formulas covered in the chapter. The selected questions below are taken from the chapter practice set in the study material. The original question numbers have been retained.

Q1. Flux through a loop varies as Φ = Φ₀sin²(ωt). The Maximum induced emf is

(A) ωΦ₀
(B) 2ωΦ₀
(C) ωΦ₀/2
(D) Zero

Q2. The magnetic flux ϕ (in weber) in a closed circuit of resistance 10Ω varies with time t (in seconds) according to the equation ϕB = 6t² − 5t + 10. The magnitude of the induced current at t = 0.25 s is

(A) 1.2 A
(B) 0.2 A
(C) 0.6 A
(D) 0.8 A

Q3. The magnetic field is perpendicular to the plane of a circular coil, and it is increasing with time. Which of the following is CORRECT?

(A) No current is induced
(B) Induced current flows in anticlockwise direction
(C) Induced current flows in clockwise direction
(D) Magnetic flux through the coil is constant.

Q4. A metallic rod of length l moves with velocity v perpendicular to a magnetic field B. If the rod is rotated so that it moves parallel to the magnetic field, the induced emf becomes

(A) Blv
(B) 2Blv
(C) Blv/2
(D) Zero

Q5. A rod moves perpendicular to its length and the magnetic field. If both its speed and length are doubled, the induced emf becomes

(A) 2 times
(B) 4 times
(C) 8 times
(D) Unchanged

Q6. A rod moving in a magnetic field develops an emf of 4 V. If the magnetic field is halved and velocity is tripled, the new emf is

(A) 2 V
(B) 4 V
(C) 6 V
(D) 12 V

Q7. A resistor of 1 Ω and an inductor of 1 H are connected in series across a source of 10 V as shown in the figure. The net emf of the circuit when the current in an inductor changes at the rate 5 As⁻¹ is

(A) 2V
(B) −2V
(C) 5V
(D) −5V

Q8. In an inductor, the current I varies with time t as I = 5 + 20t. If the induced emf in the inductor is 5 mV, the self-inductance of the inductor is

(A) 0.25 mH
(B) 0.5 mH
(C) 4 mH
(D) 5mH

Q9. A coil has inductance 5 H and carries a current of 2 A. The magnetic energy stored is

(A) 5 J
(B) 10 J
(C) 20 J
(D) 40 J

Q10. The induced emf in an AC generator is zero when the plane of the coil is

(A) Parallel to the magnetic field
(B) Perpendicular to the magnetic field
(C) At 45° to the magnetic field
(D) At 60° to the magnetic field

These questions cover magnetic flux, induced emf, Lenz’s law, motional emf, self-inductance, magnetic energy, and AC generators. The study material also contains additional practice questions and previous-year KCET questions for further practice.

Karnataka 2nd PUC Physics Chapter 6 Electromagnetic Induction PDF

The Electromagnetic Induction Important Questions PDF can be used for offline practice and revision. The chapter covers magnetic flux, Faraday and Henry experiments, Faraday’s law, Lenz’s law, motional emf, self and mutual inductance, energy stored in an inductor, and alternating current generators.

The PDF will also include previous-year KCET questions from 2020 onwards. These questions cover induced emf, self-inductance, mutual inductance, magnetic flux, motional emf, and Faraday-Henry experiments.

Important Topics in Karnataka 2nd PUC Physics: Electromagnetic Induction

You should revise the main concepts and formulas before attempting the questions. Key areas include:

• Magnetic Flux: Revise magnetic flux and its relation with magnetic field, area, and the angle between the magnetic field and area vector.

• Faraday’s Law: Understand that the induced emf in a coil is related to the rate of change of magnetic flux linked with it. The study material gives the relation.

• Lenz’s Law: Understand the direction of induced current and how it opposes the change in magnetic flux that produces it.

• Motional EMF: Revise the expression (E=Blv) for a conducting rod moving perpendicular to the magnetic field. Also practise questions involving changes in length, velocity, and magnetic field.

• Self and Mutual Inductance: Revise self-induction, the relation, and mutual induction between coils.
  Energy Stored in an Inductor: Remember the expression and practise questions based on changes in inductance and current.

• AC Generator: Revise the induced emf in an alternating current generator and the relation between angular frequency and frequency.

How to Prepare for Karnataka 2nd PUC Physics Electromagnetic Induction

You can combine formula revision with MCQ practice to prepare for Electromagnetic Induction effectively. A simple approach is:

• Revise the basic concepts: Start with magnetic flux, electromagnetic induction, Faraday’s law, and Lenz’s law. Make sure you understand how a change in magnetic flux produces induced emf.

• Focus on Faraday and Lenz laws: Practise Faraday Law Important Questions involving changing magnetic flux and induced emf. Also solve Lenz's Law Important Questions based on the direction of induced current.

• Solve numerical problems: Work through Electromagnetic Induction Numericals involving magnetic flux, induced emf, motional emf, self-inductance, mutual inductance, and energy stored in an inductor. Write the formula first and substitute the given values carefully.

• Revise generator concepts: Practise questions based on the working and induced emf of an AC generator, including questions involving angular velocity, magnetic field, area, and number of turns.

• Attempt questions independently: Solve the questions without looking at the answer first. Then check your response and revise the concept if you make an error.

Karnataka 2nd PUC Physics Chapter 6 Important Questions 2027 covers magnetic flux, Faraday’s law, Lenz’s law, motional emf, self and mutual inductance, energy stored in an inductor, and AC generators. Regular practice can help you revise formulas, solve numerical problems, and strengthen your understanding of Electromagnetic Induction.

Related Resources:

• Karnataka 2nd PUC Mid Term Time Table 2026 

• Karnataka 2nd PUC Mid Term Question Paper

• Karnataka 2nd PUC Previous Year Question Paper 

• Karnataka 2nd PUC Exam Pattern 2027

• Karnataka 2nd PUC Syllabus 2026-27

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