Class 12 NEET Physics Moving Charges and Magnetism

A closely wound solenoid of 2000 turns and area of cross section 1.5×10−4m2 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 5×10−2 tesla making an angle of 30° with the axis of the solenoid. The torque on the solenoid will be