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When a 40 Vm^(-1) electric field produce...

When a `40 Vm^(-1)` electric field produced inside a conductor then `2 xx 10^(4) Am^(-2)` curren density is established in it. Resistivity of the conducot is
(1) `2 xx 10^(-3) Omega m` (2) `4 xx 10^(-3) Omega m ` (3) ` 2 xx 10^(3)Omega m ` (4) ` 4 xx 10^(3) Omega m` ]\

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The correct Answer is:
1
`vec(j) = sigma vec(E )`
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