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In the gure, the rod moves to the right with a speed of 1.8 m/s and has a resistance of 2.3 Q . The rail

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In the gure, the rod moves to the right with a speed of 1.8 m/s and has a resistance of 2.3 Q . The rail separation is l = 24.0 cm . The O O O O [-3 (outward) magnetic eld is 0.38 T , and the resistance of the U-shaped conductor is 22.0 9 at a given instant. v Part A Calculate the induced emf. Express your answer to two signicant gures and include the appropriate units. Previous Answers Request Answer v Part B Calculate the current in the Ushaped conductor. Express your answer to two signicant gures and include the appropriate units. R_equest Answer 7 Part C Calculate the external force needed to keep the rods velocity constant at that instant. Express your answer to two signicant gures and include the appropriate units. R_equest

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