Published by:
CGP EDU Academic Team
Published on: August 13, 2026
PART-I PHYSICS
A circular coil has moment of inertia 
around any diameter and is carrying current to produce a magnetic moment of 
. The coil is kept initially in a vertical position and it can rotate freely around a horizontal diameter. When a uniform magnetic field of 
is applied along the vertical, it starts rotating around its horizontal diameter. The angular speed the coil acquires after rotating by 
will be:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
By energy conservation
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