The magnetic dipole moment of a bar magnet having pole strength and pole separation is

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

Problem

The magnetic dipole moment

\mu

of a bar magnet having pole strength

m

and pole separation

2\ell

is (a)

\mu = \dfrac{m\ell}{2}

(b)

\mu = 2m\ell

(c)

\mu = m\ell

(d)

\mu = 2\pi m\ell