Question

The inverse of resistivity is .

• A. conductance
• B. conductivity
• C. resistance
• D. specific resistance

Answer 1

The correct option is B conductivity

Resistivity ($\rho$) or specific resistance is defined as the inverse of the conductivity ($\sigma$) of a material. The conductivity of a material is given by $\sigma =\frac{l}{AR}$, where, $R$ is the resistance of the material, $l$ and $A$ are the length and cross sectional area of the material.