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Resistivity of a conductor in which a cu...

Resistivity of a conductor in which a current density `2.5 Am^-2` is found to exist, when an electric field `15 Vm^-1` is applied to it-

A

`6 Omegam`

B

`7 Omegam`

C

`4 Omegam`

D

`8 Omegam`.

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