Question: As shown in the figure, two frictionless conducting rails (#1 and #2) are attached to a20.0° incline such that the inside edges are80.0 cm apart. A copper bar with a mass of0.317 kg slides (without friction) at a constant speed down the conducting rails.
If there is a vertical magnetic field of0.0456 T in magnitude in the region of the incline, determine the magnitude of the current I that flows through the sliding copper bar.