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The current in a coil changes from 4 amp...

The current in a coil changes from `4` ampere to zero in `0.1s`. If the average e.m.f. induced is `"100 volts"`, what is the self-inductance of the coil?

A

2.5 H

B

25 H

C

400 H

D

40 H

Text Solution

Verified by Experts

The correct Answer is:
A
`L=(|e|)/(|di//dt|)=(100xx0.1)/4=2.5H`.
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