The figure shows a rectangular, 70-turn coil of wire, 9 cm by 5 cm . It carries

Question

The figure shows a rectangular, 70-turn coil of wire, 9 cm by 5 cm. It carries a current of 0.080 A and is hinged along one long side. It is mounted in the xy plane, at an angle of 30 to the direction of a uniform magnetic field of 0.40T. find the magnitude and direction of the torque acting on the coil about the hinge line. Magnitude?

The figure shows a rectangular, 70-turn coil of wire, 9 cm by 5 cm. It carries a current of 0.080 A and is hinged along one long side. It is mounted in the xy plane, at an angle of 30 degree to the direction of a uniform magnetic field of 0.40T. find the magnitude and direction of the torque acting on the coil about the hinge line. Magnitude?

Explanation / Answer

Since ? = r x F, the direction of the torque is

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