Question

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A U-shaped track is arranged vertically with the open end facing up. A bar is able to slide freely on the U-shaped track. From your point of view, you can see the "U" such that the plane of the "U" is perpendicular to your line of sight. A uniform magnetic field goes straight through the U-shaped track toward you. The bar is réleased from rest and the force of gravity pulls the bar downward. As the bar falls. determine the direction of induced current in the circuit that consists of the U-shaped track and bar. O up O couter-clockwise O to the right O clockwise

Answer 1

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