Solution to task 415 from Chertov´s for extramural stud

Solution to task 415 from Chertov´s for extramural stud

415. A thin wire l = 20 cm long is bent in the form of a half-ring and placed in a magnetic field (B = 10 mT) so that the area of the half-ring is perpendicular to the lines of magnetic induction. A current I = 50 A was passed through the wire. Determine the force F acting on the wire. Lead wires are directed along the lines of magnetic induction.

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