Figure P31 20 shows a top view of a bar that can slide without friction The resistor is 6 00 and a 2 50 T magnetic field is directed perpendicularly downward, into the paper Let 1 20 m (a) Calculate the applied force required to move the bar to the right at a constant speed of 2 00 m s (b) At what rate is energy delivered to the resistor

Question: Figure P31.20 shows a top view of a bar that can slide without friction. The resistor is 6.00 and a 2.50-T magnetic field is directed

Figure P31.20 shows a top view of a bar that can slide without friction. The resistor is 6.00 Ω and a 2.50-T magnetic field is directed perpendicularly downward, into the paper. Let ℓ = 1.20 m.
(a) Calculate the applied force required to move the bar to the right at a constant speed of 2.00 m/s.
(b) At what rate is energy delivered to the resistor?

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