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

The average e.m.f. induced in a 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

0.4 H

C

0.2 H

D

0.8 H

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The correct Answer is:

C

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