Column-I gives certain physical terms associated with flow of current through a metallic conductor. Column-II

Question

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) $\frac{m}{ne^2ho}$, (Q) $nev_d$, (R) $\frac{eE}{m}	au$, (S) $\frac{E}{J}$

Accepted Answer

Drift velocity $v_d = \frac{eE	au}{m}$. Electrical resistivity $ho = \frac{1}{\sigma} = \frac{E}{J}$. Relaxation period $	au = \frac{m}{ne^2ho}$. Current density $J = \frac{I}{A} = nev_d$. Thus, (A)-(R), (B)-(S), (C)-(P), (D)-(Q).

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