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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

`13.89H`

B

`0.138H`

C

`1.389H`

D

`138.88H`

Text Solution

Verified by Experts

The correct Answer is:
A
Magnetic potential energy `=(1)/(2)LI^(2)`
`25xx10^(-3)=(1)/(2)L(60xx10^(-3))^(2)`
`L=13.89h`
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