Two bar magnet with magnetic moment `2M` and `M` are fastened togather at right angles to each other at their centres to from a cross system, which can rotate freely about a vertical axis through the centre. The crossed system sets in earth's magnetic field with magnet having magnetic moment `2M` making and angle `theta` with the magnetic merdian such that
A
`theta=tan^(-1)((1)/(sqrt(3)))`
B
`theta=tan^(-1)(sqrt(3))`
C
`theta=tan^(-1)((1)/(2))`
D
`theta=tan^(-1)((3)/(4))`
Text Solution
Verified by Experts
The correct Answer is:
C
Topper's Solved these Questions
MAGNETISM
ERRORLESS |Exercise Magnet and it s Properties|15 Videos
MAGNETISM
ERRORLESS |Exercise Earth Magnetism|8 Videos
MAGNETIC EFFECT OF CURRENT
ERRORLESS |Exercise Exercise|394 Videos
RAY OPTICS
ERRORLESS |Exercise SET|25 Videos
Similar Questions
Explore conceptually related problems
Two magnets, each of magnetic miment 'M' are placed so as to form a cross at right angles to each other. The magnetic moment of the system will be
Two magnets of moment M and 2 M are tied at an angle of 60^(@) to each other . What is the resultant magnetic moment of the combination ?
A bar magnet of magnetic moment M is cut into four parts of equal length. The magnetic moment of each part is
The net magnetic moment of the identical magnets each of magnetic moment M_0 inclined at 60^@ with each other is
A magnet of magnetic moment M and pole strength m is divided in two equal parts, then magnetic moment of each part will be
A bar magnet of magnetic moment M and pole strength m is broken into two pieces at the middle. The magnetic moment and pole strength of each piece will be
A bar magnet of magnetic moment M and pole strength m is broken in two equal part along the magnetic axis . The magnetic moment and pole strength of each part are
