Start Free Mock LoginAlready registered? Login here

Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMagnetic Dipole & MomentEasy2 minPYQ_2020

PhysicsEasysingle choice

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

Options:

Answer:

Solution:

$\frac{M}{L} = \frac{q}{2 m}$

$M = \frac{q}{2 m} L$

$M = \frac{ρ π R^{2}}{2 m} \times I ω$

$M = \frac{ρ π R^{2}}{2 m} \times \frac{m R^{2}}{2} ω$

$M = \frac{1}{4} π R^{4} ρ ω$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:MagnetismSubtopic:Magnetic Dipole & Moment

⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...