Physics - Magnetism Question with Solution | TestHub

Magnetic moment, $M=IA=I\left(\pi r^2\right)=\frac{q}{T}\times \pi r^2$$(\because q=It)$ As $\omega =\frac{2\pi }{T}$ $\therefore M=\frac{q\omega r^2}{2}$ or $M\propto \omega$