EASY
12th CBSE
IMPORTANT
Earn 100

Define mutual inductance. Give its SI units.

Important Questions on Electromagnetic Induction

EASY
12th CBSE
IMPORTANT
How does the mutual inductance of a pair of coils change, when distance between the coils is increased?
EASY
12th CBSE
IMPORTANT
How does the mutual inductance of a pair of coils change, when number of turns in each coil is increased?
EASY
12th CBSE
IMPORTANT

Figure shows a current-carrying solenoid moving towards a conducting loop. Find the direction of the current induced in the loop.

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EASY
12th CBSE
IMPORTANT
An iron-cored solenoid has self-inductance 2.8 H. When the core is removed, the self-inductance becomes 2 mH. What is the relative permeability of the core used?    
EASY
12th CBSE
IMPORTANT
Define magnetic flux. Compute its dimensions.
EASY
12th CBSE
IMPORTANT

When is the magnetic flux taken as positive

EASY
12th CBSE
IMPORTANT
When is the magnetic flux taken as negative?
EASY
12th CBSE
IMPORTANT
What is electromagnetic induction? Give an experiment which demonstrates this phenomenon.