Mobility of free electrons in a conductor is

Question

Mobility of free electrons in a conductor is (A) directly proportional to electron density. (B) directly proportional to relaxation time. (C) inversely proportional to electron density. (D) inversely proportional to relaxation time.

Tardigrade Admin · Accepted Answer

Key Idea Electron mobility propto Drift velocity. Mobility of free electrons in a conductor is directly proportional to relaxation time. μ propto τ

Q. Mobility of free electrons in a conductor is

directly proportional to electron density.

directly proportional to relaxation time.

inversely proportional to electron density.

inversely proportional to relaxation time.

Key Idea Electron mobility $\propto$ Drift velocity.
Mobility of free electrons in a conductor is directly proportional to relaxation time.
$μ \propto τ$

Q. Mobility of free electrons in a conductor is

directly proportional to electron density.

directly proportional to relaxation time.

inversely proportional to electron density.

inversely proportional to relaxation time.

Key Idea Electron mobility ∝ Drift velocity. Mobility of free electrons in a conductor is directly proportional to relaxation time. μ∝τ

Key Idea Electron mobility $\propto$ Drift velocity.
Mobility of free electrons in a conductor is directly proportional to relaxation time.
$μ \propto τ$