Physics - Magnetism Question with Solution | TestHub

A metallic rod of mass per unit length$0.5 \mathrm{kg} {\mathrm{m}}^{-1}$is lying horizontally on a smooth inclined plane which makes an angle${30}^o$with the horizontal. The rod is not allowed to slide down by flowing a current through it when a magnetic field of induction$0.25 \mathrm{T}$is acting on it in the vertical direction. The current flowing in the rod to keep it stationary isNEET 2018