dwight1759 dwight1759

07-06-2023
Physics

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A 10cm long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field. The total resistance of the wire and rail is 0.252. Pulling the wire at a steady speed of 4m/s causes 4W of power being dissipated in the circuit. a) How big is the pulling force? b) What is the strength of the magnetic field?

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