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Calculate the energy stored in an induct...

Calculate the energy stored in an inductor of inductance 50 mH when a current of 2.0 A is passed through it.

A

`0.4 J`

B

`4.0J`

C

`0.8J`

D

`0.04J`

Text Solution

Verified by Experts

The correct Answer is:
A
`U=(1)/(2)Li^(2)=(1)/(2)xx(50xx10^(-3))xx(4)^(2)=400xx10^(-3)0.4J`
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