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A 9.00-cm-long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field. The...

A 9.00-cm-long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field. The total resistance of the wire and rail is 0.310 Ω . Pulling the wire at a steady speed of 4.00 m/s causes 4.30 W of power to be dissipated in the circuit.

a. How big is the pulling force? Express your answer with the appropriate units.

b. What is the strength of the magnetic field? Express your answer with the appropriate units.

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Answer #1

Induced cument I = 719 R Force Fo? power - FXV p = FXV =f P = 413 ン 16075N, h FE 1.075N - F= BIL BLI BIL R F = B²V22 R FR = 3Induced cument I = 719 R Force Fo? power - FXV p = FXV =f P = 413 ン 16075N, h FE 1.075N - F= BIL BLI BIL R F = B²V22 R FR = 3

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