Question

The electrical conductivity of a metal is

• A. directly proportional to the mean free path
• B. directly proportional to the mass of electron
• C. inversely proportional to the relaxation time
• D. inversely proportional to the mean free path

Answer 1

Answer: (A)

directly proportional to the mean free path

Answer 2

$\because$ Electrical conductivity, $G \propto \lambda$ Here, $\lambda$ is mean free path.