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In the figure shown a conducting rod of ...

In the figure shown a conducting rod of length `l` resistance `R` & mass `m` can move vertically downward due to gravity.Other parts are kept fixed.`B`=constant =`B_(0)`.`MN` and `PQ` are vertical, smooth, conducting rails. The capacitance of the capacitor is `C`.The rod is released from rest.Find the maximum current in the circuit.

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The correct Answer is:
`i_("max")=(mgB l c)/(m+B^(2)l^(2)c)`
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