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The intensity of magnetic field is H and...

The intensity of magnetic field is H and moment of magnet is M. The maximum potential energy is

A

MB

B

2MB

C

3MB

D

4MB

Text Solution

Verified by Experts

The correct Answer is:
A
`U=MB(costheta_(0)-costheta)`
`=MB(costheta-cos 180)`
`=2MB`
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