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The mutual inductance between a primary ...

The mutual inductance between a primary and secondary circuits is 0.5 H. The resistance of the primary and the secondary circuits are `20Omega` and `5Omega` respectively. To generate a current of 0.4 A in the secondary, current in the primary must be changed at the rate of

A

`4.0` A/s

B

`16.0`A/s

C

`1.6`A/s

D

`8.0`A/s

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The correct Answer is:
A
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VMC MODULES ENGLISH-ELECTROMAGNETIC INDUCTION & ALTERNATIVE CURRENT -ENABLE
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