3. The ring of wire resistance R = 1 Mohm is a uniform magnetic field (B = 0,4 T). The plane of the rings is a line of induction angle φ = 90°. To determine the charge, Q, which leaks around the ring if it is to pull out of the field. The area of the ring S = 10 cm2.

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