Question

what is mean by electrical resistivity of a material its SI unit describe an experiment to study the factor on which the resistance of a conductor wire depends ​

Answer 1

Answer:

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Explanation:

The electrical resistivity of a material is defined as the resistance of a conductor made of that material of unit length and unit cross-sectional area. ... When the length of the wire is doubled, then the ammeter reading decreases to half its previous value i.e., current through the wire is halved.