The coil in Fig. 28-49 carries current i = 2.47 A in the direction indicated, is parallel to an xz plane, has 6 turns and an area of 4.44 X 10-3 m2, and lies in a uniform magnetic field = (2.42 - 2.56 - 3.65 ) mT.
(a) What is the magnetic potential energy of the coil-magnetic field system?
(b) What is the magnetic torque (in unit-vector notation) on the coil?