A conducting circuit with a current source having an internal resistance of r = 0.2 Ohm is located in a uniform magnetic field with induction B = 0.1 Tesla. Vector B is perpendicular to the contour plane and directed as shown in Fig. . The AC conductor can slide along the guide rails without losing electrical contact. Find the current strength in the circuit when the AC conductor moves with a speed v1 = 10 m/s to the right, if when it moves in the same direction with a speed v2 = 40 m/s there is no current. The resistance of the conductor AC R = 0.1 Ohm, its length l = 10 cm. Neglect the resistance of the guide rails and friction forces.
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