Question

The electrical resistivity of copper wire 1m, 2m are ρ₁Ωm and ρ₂Ωm at a given temperature. Then, *

choose

ρ₁=ρ₂

ρ₁>ρ₂

ρ₂>ρ₁

ρ₂=2ρ₁



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Answer 1

the resitivity is same (ρ₁=ρ₂)

Explanation:

as, the resistivity of a material is depend on nature of material and temprature.

here temprature is constant and material is same

so, the resistivity is equal for any length and for any cross-section area.