Solving a problem in physics section 61 point 58 electr

Solving a problem in physics section 61 point 58 electr

58. The plane of the circular path of radius of 5.0 cm and a current of 1.0 A is perpendicular to the direction of the homogeneous magnetic field of H = 10 kA / m. What kind of work is necessary to make A to turn on the circuit α = 90 ° around an axis lying in the plane of the loop?

Additional information:

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