Question

1. A circular coil of wire 8.60 cm in diameter has 16.0 turns and carries a current of 2.90 A . The coil is in a region where the magnetic field is 0.620 T . a. What orientation of the coil gives the maximum torque on the coil ? Please, enter the value of the angle between the field and the normal to the plane of the loop. b. What is this maximum torque in part (A) ? c. For what orientation of the coil is the magnitude of the torque 71.0 % of the maximum found in part (B)? Please, enter the value of the angle between the field and the normal to the plane of the loop.

2. A circular coil of 49 loops and diameter 24.0 cm is lying flat on a tabletop, and carries a clockwise current of 2.80 A . A magnetic field of 0.500 T , directed to the north and at an angle of 45.0∘from the vertical down through the coil and into the tabletop is turned on. What is the torque on the coil?

Answer 1

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