Question

Resistance and resistivity are related by a:

Answer 1

Answer:

At a given temperature

Resistivity depends only on the material and resistance depends on resisitvity, length of the wire and cross-sectional area of the wire

Explanation:

At a given temperature the resistance of a specimen with unit length and unit cross sectional area is called resisitivity.

We get

        R = ρl/A

where; R = resistance

            ρ = resistivity

            l = length of the wire

            A = cross-sectional area of the wire

So you get, ρ ∝ 1\l

                   ρ ∝ A

                   ρ ∝ R