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In the figure shown PQRS is a fixed resi...

In the figure shown `PQRS` is a fixed resistanceless conducting frame in a uniform and constant magnetic field of strength `B`. A rod `EF` of mass `m` length `l` and resistance `R` can smoothly move on this frame.A capacitor charged to a potential difference `V_(0)` initially is connected as shown in the figure.Find the velocity of the rod as function of time `t` if it is released at `t=0` from rest.

Text Solution

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The correct Answer is:
`v=(Blc " " V_(0))/(m+B^(2)l^(2)C)(1-e^(-((B^(2)l^(2))/(mR)+(1)/(RC))t))`
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