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A closely wound solenoid of 2000 turns and area of cross -section 1.5 x 10-4 m2 carries a current of 2.0 A. It is suspended through its centre and perpendicular to its length, allowing it to turn in a horizontal plane in a uniform magnetic field 5 x 10-2 T making an angle of 30o with axis of the solenoid. The torque on the solenoid will be
3 x 10-3 N-m
1.5 x 10-3 N-m
1.5 x 10-2 N-m
3 x 10-2 N-m