Consider the situation shown in figure. The wire $\mathrm{PQ}$ has mass $\mathrm{m}$, resistance $\mathrm{r}$ and can slide on the smooth, horizontal parallel rails separated by a distance $\mathrm{I}$. The resistance of the rails is negligible. A uniform magnetic field $B$ exists in the rectangular region and a resistance $\mathrm{R}$ connects the rails outside the field region. At $\mathrm{t}=0$, the wire $\mathrm{PQ}$ is pushed towards right with the speed $^{v_{0}}$. Find
(a) the current in the loop at an instant when the speed of the wire $\mathrm{PQ}$ is $\mathrm{V}$.
(b) the acceleration of the wire at this instant,
(c) the velocity $v$ as a function of $x$ and
(d) the maximum distance the wire will move.
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