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Questions  >>  CBSE XII  >>  Physics  >>  Current Electricity
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Derive the relation between current and velocity 

$\begin{array}{1 1} (a)\;I= nev_dA\\ (b)\;I=\large\frac{ neA}{V_d} \\ (c)\;I=\large\frac{neA}{V_d^2} \\ (d)\;I= nev_d \end{array} $

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