50. The sliding bar has a length of 1.0 m, and moves at 3.0 m/s in a magnetic field of magnitude 0.5 T. This could induced motionalemf. If the resistance in the circuit is 1.0 Ω, what is the power delivered to the resistor if the current goes counterclockwise aroundthe loop?
(A) 0.85 W
(B) 1.35 W
(C) 1.80 W
(D) 2.25 W
(E) 2.55 W