41. At the small ring mass m = 20 g, and the radius R = 10cm charge is uniformly distributed with the linear density τ = 5,0 nC / m. The ring rotates at a frequency ν = 20 s-1 with respect to an axis passing through the center of the ring perpendicularly to its plane. Define: a) the magnetic moment of pm circular current generated by the ring; b) the ratio pm / L of the magnetic moment at the time of the pulse ring.

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