EASY
12th Bihar Board
IMPORTANT
Earn 100

The working of dynamo is based on the principle of-
(a)Heating effect of current
(b)Electro-magnetic induction
(c)Induced magnetism
(d)Induced electricity

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Important Questions on Electromagnetic Induction
MEDIUM
12th Bihar Board
IMPORTANT
Lenz's law of electromagnetic induction follows the principle of conservation of energy. Discuss it.

EASY
12th Bihar Board
IMPORTANT
What is meant by mutual induction?
