AP EAMCET Medical 2017 Shift 2 Paper

A thin conducting rod MN moves with a velocity 'v‘ which is parallel to a long straight wire carrying a current ‘i’ as shown in the figure. The length of the rod is normal to the length of the wire. The nearer end of the rod is at a distance ‘a’ fromthe wire. Induced emf in the total length of the rod is
(length of the rod = b)