A wire has a diameter of 2 mm and a length of 37.9 m, and is found to have a resistance of 2 . What is the resistivity of the wire?
I need to be able to explain this to someone ASAP, so please use formulas. Thank you!
I need to be able to explain this to someone ASAP, so please use formulas. Thank you!
-
Diameter =2mm, radius 1 mm
Area = π (mm)^2 = πe-6 m^2
ρ=AR/L = πe-6*2/37.9 = 1.66 e-7 Ωm
======================
Area = π (mm)^2 = πe-6 m^2
ρ=AR/L = πe-6*2/37.9 = 1.66 e-7 Ωm
======================