Electric field (E) and current density (J) have relation

Question

Electric field (E) and current density (J) have relation (A)  E propto J-1  (B)  E propto J  (C)  E propto (1/J2)  (D)  E2 propto (1/J)

Tardigrade Admin · Accepted Answer

Current density relates with electric field as vecJ=σ vecE=( vecE/ρ ); where σ = conductivity and ρ = resistivity or specific resistance of substance.

Q. Electric field (E) and current density (J) have relation

$E \propto J^{- 1}$

$E \propto J$

$E \propto \frac{1}{J ^{2}}$

$E^{2} \propto \frac{1}{J}$

Current density relates with electric field as $J = σ E = \frac{E}{ρ};$ where $σ =$ conductivity and $ρ =$ resistivity or specific resistance of substance.

Q. Electric field (E) and current density (J) have relation

E∝J−1

E∝J

E∝J21​

E2∝J1​

Current density relates with electric field as J=σE=ρE​; where σ= conductivity and ρ= resistivity or specific resistance of substance.

$E \propto J^{- 1}$

$E \propto J$

$E \propto \frac{1}{J ^{2}}$

$E^{2} \propto \frac{1}{J}$

Current density relates with electric field as $J = σ E = \frac{E}{ρ};$ where $σ =$ conductivity and $ρ =$ resistivity or specific resistance of substance.