State the expression for the potential energy of a magnetic dipole of moment kept in…

PHYSICS · Single correct · CBSE · Physics · Magnetism and Matter · Magnetism and Matter

Problem

State the expression for the potential energy

U

of a magnetic dipole of moment

\mu

kept in a uniform magnetic field

B

at an angle

\theta

with the field direction. (a)

U=-\mu B\cos\theta

(b)

U=+\mu B\cos\theta

(c)

U=-\mu B\sin\theta

(d)

U=\mu B(1-\cos\theta)