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Task 30787.
According to the wire length l = 60 cm, in a uniform magnetic field with induction B = 1.2 T, and located in a plane perpendicular to the direction of the field, the current I flows from the power source to the voltage U = 7 V. For wire acts the electromagnetic force F, Move it a speed V = 8 m / s. Resistance wire connecting wires R = 0,5 Ohm. Determine the value of the current I0 at a fixed wire, back-EMF induced in the wire, and the current I when it is moved.
Detailed solution shorthand terms, formulas and laws used in the decision, the withdrawal of the calculation formula and the response.
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