Question

What is the electrical resistivity of Copper?

(a) 1.59 * 10^-8

(b) 1.68 * 10^-8

(c) 2.65 * 10^-8

(d) 5.9 * 10^-8

I have been asked this question during an online interview.

My doubt is from Electrical Properties topic in chapter Properties of Engineering Materials of Engineering Material & Metallurgy

Answer 1

Right option is (b) 1.68 * 10^-8

Best explanation: The electrical resistivity of Copper is 1.68 * 10^-8. The electrical resistivity of Silver, Aluminum, and Zinc is 1.59 * 10^-8, 2.65 * 10^-8, and 5.9 * 10^-8 in that order. The electrical resistivity is generally measured at 20^oC.