31. In a homogeneous magnetic field with induction B = 0,5 T is a rectangular frame of length a = 8 cm and a width b = 5 cm, with N = 100 turns of fine wire. The current in the frame I = 1 A, and a parallel plane of the magnetic induction lines. Define. 1) the magnetic moment of the frame; 2) the torque acting on the frame.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)