Задача 31047.

On a long straight wire carrying a current I1 = 1 A. In the square loop current I2 flows. The circuit is removed outside the magnetic field of the wire. This work is done A = 42 nJ. b = 10 cm and 30 cm =. Determine the current I2 in the second circuit, and the mutual inductance of wires and circuits.

Detailed solution with a short recording conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
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