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A coil of self-inductance L is placed in...

A coil of self-inductance `L` is placed in an external magnetic field (no current flows in the coil). The total magnetic flux linked with the coil is `varphi`. The magnetic field energy stored in the coil is

A

zero

B

`(varphi^(2))/(2L)`

C

`(varphi^(2))/L`

D

`(2varphi^(2))/L`

Text Solution

Verified by Experts

The correct Answer is:
B
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