A metal wire of mass m slides without friction on two horizontal rails spaced distance
Channel: Doubtnut
Date: 2020-08-16

A metal wire of mass m slides without friction on two horizontal rails spaced distance d-apart as shown in figure. The rails are situated in a uniform magnetic field B, directed vertically upwards, and a battery is sending a current I through them. Find the velocity of the wire as a function of time, assuming it to be at rest initially.