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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 Column-II
A) Drift velocity P) $\frac{m}{n e^{2} ρ}$
B) Electrical resistivity Q) $n e v_{d}$
C) Relaxation period R) $\frac{e E}{m} τ$
D) Current density S) $\frac{E}{J}$

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A-R, B-Q, C-S, D-P

A-R, B-S, C-P, D-Q

A-R, B-S, C-Q, D-P

A-R, B-P, C-S, D-Q

answer is B.

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Detailed Solution

Drift velocity = $\frac{e E}{m} τ$

Electrical resistivity = $\frac{E}{J}$

Relaxation period = $\frac{m}{n e^{2} ρ}$

Current density = $n e v_{d}$

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