A metallic rod of mass per unit length `0.5 kg m^(-1)` is lying horizontally on a straght
Channel: Doubtnut
Date: 2020-01-19

A metallic rod of mass per unit length `0.5 kg m^(-1)` is lying horizontally on a straght inclined plane which makes an angle of `30^(@)` with the horizontal. The rod is not allowed to slide down by flowing a current throguh it when a magnetic field of induction `0.25 T` is acting on it in the vertical direction. The current flowing in the rod to keep it stationary is