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The coefficient of mutual inductance of ...

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

2 mV

B

3 V

C

zero

D

3 mV

Text Solution

Verified by Experts

The correct Answer is:
C
the induced e.m.f. is given by
`e_(2) = M(dI_(1))/(dt)`
But in this case a steady current of 2A flows in one coil.
`:. (dI)/(dt) = 0 :. e_(2) =0`.
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MARVEL PUBLICATION-ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS -TEST YOUR GRASP - 16
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