A Rod Lies in the Plane of the Page and Moves

Multiple Choice

A rod lies in the plane of the page and moves at constant velocity, perpendicular to the rod, toward the top of the page, through a magnetic field that points out of the page. The correct statement concerning the potential induced across the rod is

A) no potential is induced across the rod.
B) the top part of the rod is at lower potential than the lower part.
C) the top part of the rod is at higher potential than the lower part.
D) the right end of the rod is at higher potential than the left end.