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When a current carrying coil is placed i...

When a current carrying coil is placed in a uniform magnetic field with its magnetic moment anti-parallel to the field.

A

torque on it is maximum

B

torque on it is zero

C

potential energy is maximum

D

dipole is in unstable equilibrium

Text Solution

Verified by Experts

The correct Answer is:
(b,c,d)
`vectau=vecMxxvecB and U=-vecM.vecB`
Here, `vecM and vecB` are anti-parallel.
`:. Vectau=vecO and U=+MB (maximum)`
`:.` (b),(c) and (d).
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