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A bar magnet of magnetic moment 3.0 A-m^...

A bar magnet of magnetic moment `3.0 A-m^(2)` is placed in a uniform magnetic induction field of `2xx10^(-5)T`. If each pole of the magnet experiences a force of `6xx10^(-4)N`, the length of the magnet is

A

`0.5 m`

B

`0.3 m`

C

`0.2 m`

D

`0.1 m`

Text Solution

Verified by Experts

The correct Answer is:
D
`F=mB`
`M=mxx2l`
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