91. A uniform magnetic field increases in proportion to the time = kt, where k = 10 T / s. What is the amount of heat released in a frame having a square shape with a side of a = 1 m in a time t2 - t1 = 2? The frame is made of aluminum wire having a cross section S = 1 mm2. The plane of the frame is angled 30 ° to the field. Room temperature 20 ° C.

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