EASY
12th West Bengal Board
IMPORTANT
Earn 100

Define the term self-inductance.

Important Questions on Electromagnetic Induction

EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 9 - Electromagnetic Induction>EXERCISE 9>Q 11

A magnet is moved in the direction indicated by the arrow between the two coils AB and CD as shown in the figure. Suggest the direction of current in each coil.

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EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 9 - Electromagnetic Induction>EXERCISE 9>Q 12
What is an ideal inductor?
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 9 - Electromagnetic Induction>EXERCISE 9>Q 13
A wire kept in east-west direction is allowed to fall freely. Will an emf be induced in the wire?
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 9 - Electromagnetic Induction>EXERCISE 9>Q 14

Predict the polarity of the capacitor in the situation described in the figure given below.

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EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 9 - Electromagnetic Induction>EXERCISE 9>Q 15
Magnetic flux through a coil changes from 12 mWb to 6 mWb in 0.015 s. What is the induced emf in volts?
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 9 - Electromagnetic Induction>EXERCISE 9>Q 16
Why is the oscillation of copper disc in a magnetic field are damped?
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 9 - Electromagnetic Induction>EXERCISE 9>Q 17
The two ends of coil of resistance R are joined by a connecting wire. The magnetic flux linked by the coil changes by ∆ϕ. How much charge would flow in the circuit?
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 9 - Electromagnetic Induction>EXERCISE 9>Q 18
Which factors self-inductance of a coil depends upon?