A bar magnet of magnetic moment M 1 is suspended by a wire in a magnetic field. The top of the wire is twisted through 
, then the magnet is rotated through 
. Under similar conditions another magnet of magnetic moment M 2 is rotated through 
, the ratio 
is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Dividing both the equations gives 
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