A metal rod moves at a constant velocity in a direction perpendicular to its length. A constant uniform magnetic field exists in space in a direction perpendicular to the rod as well as its velocity. Select the correct statement(s) from the following [IIT JEE 1998]

• A.            The entire rod is at the same electric potential
• B.            There is an electric field in the rod
• C.            The electric potential is highest at the centre of the rod and decreases towards its ends
• D.            The electric potential is lowest at the centre of the rod and increases towards its ends