A rectangular loop with a sliding conductor of length l is located in a uniform magnetic field perpendicular to the plane of the loop (figure). The magnetic induction is B. The conductor has a resistance R. The sides AB and CD have resistances R1 and R2, respectively. Find the current through the conductor during its motion to the right with a constant velocity v.
Induced emf = Blv. R is internal resistance of source of emf i.e., of rod
Total resistance of circuit =