A circular coil of 160 turns has a radius of 1.76 cm. (a) Calculate the current that results in a magnetic dipole moment of magnitude 2.44 A-m. (b) Find the maximum magnitude of the torque that the coil, carrying this current, can experience in a uniform 42.0 mT magnetic field. (a) Number i (b) Number Units Units The coil in the figure carries current i= 1.74 A in the direction indicated, is parallel to an xz plane, has 2 turns and an area of 3.92 10-3 m, and lies in a uniform magnetic field B = (1.63 -2.66 - 3.44 ) 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? (a) Number i Unit (b) Number (i i+ i x + k) Unit