Physics-
General
Easy
Question
A circular loop of radius 20cm is placed in a uniform magnetic field 
in X-Y plane. the loop carries a current 1A in the direction shown in figure. The magnitude of torque acting on the loop is nearly33. A non conducting disc of radius R, charge q is rotating about an axis passing through its centre and perpendicular to its plane with an angular velocity w charge q is uniformly distributed over its surface. The magnetic moment of the disc is
- 0.25 N-m
- 0.75N-m
The correct answer is: 0.25 N-m
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