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A closely wound solenoid of 2000 turns a...

A closely wound solenoid of 2000 turns and area of cross-section `1.6x10-^4 m^2`, carrying a current of 4.0A, is suspended through its centre allowing it to turn in a horizontal plane. Br What is the force and torque on the solenoid if a uniform horizontal magnetic field of `7.5x10^2` is set up at an angle of 30° with the axis of the solenoid?

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