Question

Define conductivity of the metallic wire.Write the si unit.

Answer 1

It is defined as the ratio of the current density in the wire to the electric field which brings above the flow of electron in the wire. It is reciprocal of the resistivity of the metalic wire. SI unit is siemens per meter (S/m)

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Answer 2

It is defined as the ratio of the current density in the wire to the electric field which beings above the flow of electrons in the wire . It is reciprocal of the resistivity of the metallic.
SI unit is Siemens per metre (S/M).
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