82. In a magnetic field whose inductance changes uniformly at a rate dB / dt = 2,0 mT / s, the coil is placed diameter D = 3,0 cm. The coil winding is a single layer tightly contiguous turns N = 400 aluminum wire (ρ nom = 26 • m) section S = 2,0 mm2, and its axis is parallel to the lines of induction. The ends of the coil are short-circuited. To determine the thermal power w, a stand-out in the coil.

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