TestHub
TestHub

Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMagnetic Dipole & MomentMedium2 minPYQ_2020
PhysicsMediumsingle choice

A small circular loop of conducting wire has radius a and carries currentI.It is placed in a uniform magnetic fieldBperpendicular to its plane such that when rotated slightly about its diameter and released, it starts performing simple harmonic motion of time periodT.The mass of the loop ismthen:

Options:

Answer:
C
Solution:

τ=MBsinθ=Iα
πR2iBθ=mR22α
ω=2πiBm=2πT;T=2πmiB

Stream:JEESubject:PhysicsTopic:MagnetismSubtopic:Magnetic Dipole & Moment
2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...