A thin circular disk of radius R is uniformly charged

eSaral Updated on:
Question:

A thin circular disk of radius $R$ is uniformly charged with density $\sigma>0$ per unit area. The disk rotates about its axis with a uniform angular speed $\omega$. The magnetic moment of the disk is :-

  1. $2 \pi R^{4} \sigma \omega$

  2. $\pi R^{4} \sigma \omega$

  3. $\frac{\pi \mathrm{R}^{4}}{2} \sigma \omega$

  4. $\frac{\pi R^{4}}{4} \sigma \omega$

Correct Option: , 4

Solution:

Leave a comment

eSaral Gurukul

NEET

JEE Main

JEE Advanced

Our Telegram Channel

All Study Material