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The magnetic potential energy stored in ...

The magnetic potential energy stored in a certain inductor is `25mJ`, when the current in the inductor is `60 mA`. This inductor is of inductance

A

0.138H

B

138.88H

C

1.389H

D

13.89H

Text Solution

Verified by Experts

The correct Answer is:
D
`PE = (1)/(2) LI^(2)`
`25 xx 10^(-3) = (1)/(2) L (60 xx 10 ^(-3))^(2)`
`L = 13.89 H`
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