Solving a problem in physics section 4 paragraph 86 ele

Solving a problem in physics section 4 paragraph 86 ele

85. Coil diameter d = 20 cm can be rotated about a vertical axis coinciding with one of the diameter of the coil. Revolution installed in the plane of the magnetic meridian, and let him on the current of I = 10 A. Find mechanical moment M, which must be applied to a coil, to keep him in the starting position. (Horizontal component Bz of the magnetic induction field of the Earth taken equal to 20 mT).

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

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