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The e.m.f. induced in a secondary coil i...

The e.m.f. induced in a secondary coil is `20000 V` when the current breaks in the primary coil. The mutual inductance is `5H` and the current reaches to zero in `10^(-4) sec` in the primary. The maximu current in the primary before it breaks is

A

`0.1 `A

B

`0.4` A

C

`0.6` A

D

`0.8` A

Text Solution

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The correct Answer is:
B
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