3 years ago

Resistance and resistivity are related by a:

Physics

1 answer:

Dimas [21]3 years ago

7 0

Answer:

<u>At a given temperature</u>

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

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