Solving a problem in physics section 17 paragraph 71 el

Solving a problem in physics section 17 paragraph 71 el

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?

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