The figure shows a metallic wire (yz) slides on two metallic bars with velocity 0.5 m/s perpendicular to the direction of a magnetic field of flux density 2T. If the reading of the ammeter is 0.2 A so, the length of the moving wire in the magnetic field equals……
(a) 0.04m (b) 0.02m
(c) 0.01m (d) 0.03m