As shown in figure, two vertical conducting rails separated by...

As shown in figure, two vertical conducting rails separated by distance $1.0 \mathrm{~m}$ are placed parallel to $z$-axis. At $z=0$, a capacitor of $0.15 \mathrm{~F}$ is connected between the rails and a metal rod of mass $100 \mathrm{gm}$ placed across the rails slides down along the rails. If a constant magnetic fields of $2.0 \mathrm{~T}$ exists perpendicular to the plane of the rails, what is the acceleration of the rod? (Take $g=9.8 \mathrm{~m} / \mathrm{s}^2$ )