Решение задачи по физике раздел 61 пункт 57 электро

57. The plane of the circular path of radius R = 7,0 cm and a current of I = 2,0 A perpendicular to the direction of the homogeneous magnetic field strength H = 15 kA / m. What kind of work is necessary to make A to rotate the circuit by 90 ° around an axis lying in the plane of the loop?

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