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When the current in a coil charges from ...

When the current in a coil charges from 2A to 4A in 0.05 s, emf of 8 volt is induced in the coil. The coefficient of self induction of the coil is -

A

0.1 H

B

0.2 H

C

0.3 H

D

0.4 H

Text Solution

Verified by Experts

The correct Answer is:
B
`e=L(dI)/(dt)`
`therefore L=(e)/(dI//dt)=(8)/(2//0.05)=0.2`H
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