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Class 12 Physics Practice Test: Motional Electromotive Force
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Class 12 Physics Practice Test: Motional Electromotive Force
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1. A bar of length 0.15 m slides along metal rails at a speed of 5 m/s. The bar and rails are in a magnetic field of 40 T, pointing out into the page. The resistance of two resistors in parallel is both 20 Ω, and the resistance of the bar is 5 Ω. What is the current in the bar?

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