A man is facing a loop of wire which carries a clockwise current of 3.0A and which surrounds an area of 5.8 × 10−2 m2. The magnetic dipole moment of the loop is: A. 3.0A · m2, away from you B. 3.0A · m2, toward you C. 0.17A · m2, away from you D. 0.17A · m2, toward you E. 0.17A · m2, left to right.

3 m ol B. Currents I,=7.0 A and Iz run perpendicular to the x-y plane in long straight wires as shown in the figure. If the net magnetic field at the origin is in the direction shown and 0= 37. Find the value of I (in A). 1, 7.5 2. 10.5

A circular coil of wire of 200 turns and diameter 5 cm carries a current of 4 A. It is placed in a magnetic field of 0.70 T with the plane of the coil making an angle of 30° with the magnetic field. What is the torque on the coil? 2.5 N·m 1.8 N.m 0.48 N.m 0.95 N·m

The rod shown in the accompanying figure is moving through a uniform magnetic field of strength B = 0.85 T with a constant velocity of magnitude v = 4.5 m/s. What is the potential difference between the ends of the rod? Which end of the rod is at a higher potential? T. 5.0 cm Hint a. The magnitude of the potential difference between the ends of the rod is V. b. The Select an answer v of the rod is at a higher potential. Hint for (b)