1. Tardigrade
  2. Question
  3. Physics
  4. 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 ( m / ne 2 ρ) B Electrical Resistivity Q ne v d C Relaxation Period R ( e E / m ) τ D Current Density S ( E / J )

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Q. 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 $\frac{ m }{ ne ^{2} \rho}$
B Electrical Resistivity Q $ne v_{ d }$
C Relaxation Period R $\frac{ e E }{ m } \tau$
D Current Density S $\frac{ E }{ J }$

NEETNEET 2021Current Electricity

Solution:

$j = neV _{ d }=\sigma E$
$\sigma= j / E $
$\Rightarrow \rho= E / j$
$( A ) \rightarrow( R )$
$( B ) \rightarrow( S )$
$( C ) \rightarrow( P )$
$( D ) \rightarrow( Q )$