A conducting rod AB of length d = 1.4 makes contact with the metal rails AD and BC as shown in the diagram.

A conducting rod AB of length d = 1.4 makes contact with the metal rails AD and BC as shown in the diagram. The apparatus is in a uniform magnetic field of flux density 380 , perpendicular to the plane of the diagram. Find the magnitude of the induced emf in the rod if it is moving to the right with a velocity of 2.5m/s.