Question

what is meant by electrical resistivity of a material? Derive its S.I. unit. Describe the

factors on which the resistivity of a conducting wire depends and how? ​

Answer 1

Answer:

Hi! friend

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.

hope it is helpful.........