Задача 30061.

A galvanometer frame 4 cm long and 1.5 cm wide, containing 200 turns of thin wire, is in a magnetic field with an induction of 0.1 T. The density of the frame is parallel to the lines of induction. Find the mechanical moment M acting on the loop when a current of 1 mA flows through the coil, and the magnetic moment pm of the loop at this current.

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