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A bar magnet of magnetic moment vec(M) i...

A bar magnet of magnetic moment `vec(M)` is placed in a magnetic field of induction `vec(B)` . The torque exerted on it is

A

`MxxB`

B

`-B.M`

C

M.B

D

M+B

Text Solution

Verified by Experts

When a bar magnet moment M is placed in a magneic field of induction B, then net force on it is

wile toruque , `tau=mBxx2lsintheta=MBsintheta " " (asM=2ml)`
`i.e. " " tau=MxxB`
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