40 12. The figure shows a rectangular 20.0-turn coil of wire, of dimensions 10.0 cm by 5.00 cm. It carries a current of 0.100 A and is hinged along one long side. It is mounted in the xy plane, at angle 0 # 30.0 to the direction of a uniform magnetic field of magnitude Hinge 0.500 T. In unit-vector notation, calculate the torque line acting on the coil about the hinge line at this moment. A B 2