MagnetismEasy
Question
Two particles, each of mass m and charge q, are attached to ends of a light rigid rod of length 2R. The rod is rotated at a constant angular speed about a perpendicular axis passing through its centre. The ratio of the magnitude of the magnetic moment of the system and its angular momentum about the centre of the rod is
Options
A.q/2m
B.q/m
C.2q/m
D.2/πm
Solution
Current, i = (frequency) (charge)
Mangetic moment,
M = (i)(A) =
(πR2) = (qωR2)Angulae momentum,
L = 2Iω = 2(mR2)ω
∴
Create a free account to view solution
View Solution FreeMore Magnetism Questions
When a proton is released from rest in a room, it starts with an initial acceleration a0 towards west. When it is projec...The time period of a charged particle undergoing a circular motion in a uniform magnetic field is independent of its...If an electron enters a magnetic field with its velocity pointing in the same direction as the magnetic field then : -...An alternating electric field, of frequency v, is applied across the dees (radius = R) of a cyclotron that is being used...Current I is flowing in a conducting circular loop of radius R. It is kept in a magnetic field B which is perpendicular ...