Question

A magnetic dipole moment of o 0.05 joule pert free of magnetic field in tesla.
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Answer 1

Answer:

(a) In stable equilibrium, the bar magnet is aligned along the magnetic field,i.e., θ=0

∘

.

Potential energy=−mBcosθ=−4.8×10

−2

J

(b) In unstable equilibrium, the bar magnet is aligned reversed to magnetic field, i.e., θ=180

∘

.

Potential energy=−mBcosθ=4.8×10

2

J