State expression for current density in terms of conductivity. – InterviewSolution

1.

State expression for current density in terms of conductivity.

Answer»

Current density, \(\overset\rightarrow{j}=\frac{1}{ρ}\,\overset\rightarrow{E}\) = σ \(\overset\rightarrow{E}\)

where, ρ = resistivity of the material

E = electric field intensity

σ = conductivity of the material

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