Question

A wire of length 0.1 m long and diameter 0.2 mm of Resistance 10 ohm. Calculate its resistivity.

Answer 1

Answer:3.14 Ωm

Explanation:

ρ=(R *Area)/length

ρ=10*πr²/0.1

ρ=0.314/0.1

ρ=3.14 Ωm