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The current in a coil changes from 0 to ...

The current in a coil changes from 0 to 2 A in 0.05 sec. If the induced e.m.f is 80 V, the self inductance 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
`|epsilon| = (d l)/(d t)`
`8 = L(2-0)/(0.05) = 0.2 H`
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