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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

`4.0As^(-1)`

B

`1.6As^(-1)`

C

`16.0As^(-1)`

D

`8.0As^(-1)`

Text Solution

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The correct Answer is:
A
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