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A current of 10 A in primary of a circui...

A current of 10 A in primary of a circuit is reduced to zero at a unifrom rate in `10^(-3)`s. If coeff.of mutual inductance is 3 H, what is the induced e.m.f. in the secondary ?

A

3 kV

B

30 kV

C

2 kV

D

20 kV

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The correct Answer is:
B
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