Question

iii) Electrical resistivity of a given metallic wire depends upon
(a)its length (b)itsthickness (c) its shape
(d) nature of thematerial
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Answer 1

Answer:

Electrical resistivity of a given metallic wire = (a) Nature of the material.

Answer 2

Electrical resistivity of a given metallic wire depends on number density of free electrons in the conductor which is the nature of material, i.e., number of free electrons per unit volume. It also depends on the temperature of conductor