Electric current, drift velocity, mobility

Column - I gives certain physical terms associated with flow of current through a metallic conductor. Column - II gives some mathematical relations involving electrical quantities. Match Column - I and Column - II with appropriate relations.

Column - I: (A) Drift Velocity; (B) Electrical Resistivity; (C) Relaxation Period; (D) Current Density

Column - II: (P) \(\frac{m}{ne^2\rho}\); (Q) \(nev_d\); (R) \(\frac{eE}{m}\tau\); (S) \(\frac{E}{J}\)

A charged particle having drift velocity of \(7.5\times10^{-4}\) m s\(^{-1}\) in an electric field of \(3\times10^{-10}\) V m\(^{-1}\), has a mobility in m\(^2\) V\(^{-1}\) s\(^{-1}\) of :