First slide

Magnetic dipole in a uniform magnetic field

Question

Two magnets A and B of the same dimensions and mass are made to oscillate in the same magnetic field. A performs 15 vibrations per minute and B, 10 vibrations per minute. The magnetic moments of the two magnets are in the ratio of

Easy

A

$\frac{\sqrt{3}}{2}$
B

3/2
C

9/4
D

81/16

Solution

$T = 2 π \sqrt{(\frac{I}{MB})} = \frac{1}{n} or n \propto \sqrt{M} or n^{2} \propto M ∴ {(\frac{n_{A}}{n_{B}})}^{2} = \frac{M_{A}}{M_{B}} or {(\frac{15}{10})}^{2} = \frac{M_{A}}{M_{B}} or \frac{M_{A}}{M_{B}} = {(\frac{3}{2})}^{2} = \frac{9}{4}$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App