Question

What is the SI unit of conductivity?

• A. ${\Omega }^{-1}$
• B. ${\Omega }^{-1}c{m}^{2}mo{l}^{-1}$
• C. $S{m}^{2}mo{l}^{-1}$
• D. $S{m}^{-1}$

Answer 1

Answer: (D)

Conductivity $(\sigma )=\frac{1}{\text{ Resistivity }(\rho )}$
In Sl unit, $\sigma =\frac{1}{ohmm}=S{m}^{-1}$.