MHT CET 2023 Physics question
A solenoid of length 0.4 m and having 500 turns of wire carries a current 3A. A thin coil having 10 turns of wire and radius 0.1 carries current 0.4 A, the torque required to hold the coil in the middle of the solenoid with its axis perpendicular to the axis of the solenoid is ( SI units, ) (sin 90 = 1)
Answer: (C)
Solution
Field at the middle of the solenoid: T. Magnetic moment of the coil: A m. Since the coil's axis is perpendicular to the solenoid's axis, the angle between
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