The figure below shows a top view of a bar that can slide on two frictionless rails. The resistor is R = 6.20 ?,and a 2.50-T magnetic field is directed perpendicularly downward, into the page. Let = 1.20 m.
(a) Calculate the applied force required to move the bar to the right at a constant speed of 2.30 m/s.
N (to the right)
(b) At what rate is energy delivered to the resistor?
W