Column - I gives certain physical terms associated with flow of...

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	$\left(P\right)\dfrac{m}{n{e}^{2}ρ}$
(B) Electrical Resistivity	\left(Q\right)ne{v}_{d} $</td> </tr> <tr> <td>(C) Relaxation Period</td> <td>\left(R\right)\dfrac{eE}{m}τ$
(D) Current Density	\left(S\right)\dfrac{E}{J}

Options

A $( A ) - ( R ) , ( B ) - ( S ) , ( C ) - ( P ) , ( D ) - ( Q )$
B $( A ) - ( R ) , ( B ) - ( S ) , ( C ) - ( Q ) , ( D ) - ( P )$
C $( A ) \cdot ( R ) , ( B ) - ( P ) , ( C ) - ( S ) , ( D ) - ( Q )$
D $( A ) - ( R ) , ( B ) - ( Q ) , ( C ) - ( S ) , ( D ) - ( P )$

Correct answer

A. $( A ) - ( R ) , ( B ) - ( S ) , ( C ) - ( P ) , ( D ) - ( Q )$

Step-by-step solution

Drift velocity, $V = \left(\dfrac{eE}{m}\right)τ$

Electrical resistivity, $ρ = \dfrac{E}{J}$

Relaxation period, $τ = \dfrac{m}{n{e}^{2}ρ}$

Current Density, $J = ne{V}_{d}$

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

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