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Questions  

The coefficient of mutual inductance of two coils is 6 mH. If the current flowing in one is 2 ampere, then the induced e.m.f. in the second coil will be

a
3 mV
b
2 mV
c
3 V
d
Zero

detailed solution

Correct option is D

In secondary e.m.f. induces only when current through primary changes.

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