The average e.m.f induced in coil in whi...

The average e.m.f induced in coil in which the current changes from 2 ampere to 4 ampere in `0.05` second is 8 volt . What is the self inductance of the coil ?

A

`0.1 ` H

B

`0.2` H

C

`0.4` H

D

`0.8` H

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The correct Answer is:

B

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