JEE PHYSICS MCQ: CURRENT ELECTRICITY

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The correct relation between current density

(\vec{J})

and electric field

(\vec{E})

is

(Where

\rho

is resistivity,

\sigma

is conductivity and

R

is resistance of conductor)

View answer and explanation

Correct option: B

\vec{J}=\sigma \vec{E}

Option B (

\vec{{J}}=\sigma \vec{{E}}

) is correct because it represents the relationship between current density and electric field, where conductivity is the constant of proportionality.

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