71. Two small identical coils are arranged so that their axes lie in a straight line. The distance between the coils l = 2,00 m greatly exceeds their linear dimensions. The number of turns of each coil N = 150, r = radius of 50 mm. With what force F interact coil, when it flows the same current I = 1,00 A?

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