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A bar magnet having a magnetic moment of...

A bar magnet having a magnetic moment of `2xx10^(4) JT^(-1)` is free to rotate in a horizontal plane. A horizontal magnetic field `B=6xx10^(-4) T` exists in the space. The work done in taking the magnet slowly from a direction parallel to the field to a direction `60^(@)` from the field is

A

`0.6J`

B

`12J`

C

`6J`

D

`2J`

Text Solution

Verified by Experts

The correct Answer is:
C
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