A square ring of side a with a uniformly distributed charge $q$ rotates about its centroidal axis (p

Question

A square ring of side a with a uniformly distributed charge $q$ rotates about its centroidal axis (perpendicular to its plane) with angular velocity $\omega$. The magnetic moment of the ring is

Professor PC Thomas Classes · Answer

Since $p=\frac{q}{2 m} L$
$
	herefore \quad p=\frac{q}{2 m}\left(I_C \omegaight)=\frac{q}{6} a^2 \omega \quad\left(\because I_C=\frac{m a^2}{3}ight)
$