EASY
12th West Bengal Board
IMPORTANT
Earn 100

Does the change in magnetic flux induce emf or current?

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 26
Why does the acceleration of a magnet falling through a long solenoid increase ?
 
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 9 - Electromagnetic Induction>EXERCISE 9>Q 27
How does the mutual inductance of a pair of coils change when the number of turns in each coil is decreased?
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 9 - Electromagnetic Induction>EXERCISE 9>Q 28
A vertical metallic pole falls down through the plane of the magnetic meridian. Will any emf be induced between its ends?
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 9 - Electromagnetic Induction>EXERCISE 9>Q 29
A train is moving with uniform velocity from north to south. Will any induced emf appear across ends of the axle.
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 9 - Electromagnetic Induction>EXERCISE 9>Q 30
If the self-inductance of an air core inductor increases from 0.01 mH to 10 mH on introducing an iron core into it, what is the relative permeability of the core used?
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 9 - Electromagnetic Induction>EXERCISE 9>Q 31
State Fleming's right-hand rule.
HARD
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 9 - Electromagnetic Induction>EXERCISE 9>Q 32
Why a battery loses some extra energy if there is coil of high inductance in a circuit?
HARD
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 9 - Electromagnetic Induction>EXERCISE 9>Q 33
When does self-inductance of a coil act in aD.C. circuit?