1. Electron Velocity:
Electron velocity signifies the electron's instantaneous speed and direction of movement. It refers to the random, high-speed motion of an electron in all directions due to thermal energy. This velocity, approximately \( 10^6 \, \text{m/s} \), does not contribute to the net current.
2. Drift Velocity:
Drift velocity is the average velocity of conduction electrons in a conductor when subjected to an electric field. It represents the net directional movement responsible for current flow. Drift velocity is considerably lower than electron velocity, typically around \( 10^{-3} \, \text{m/s} \).
3. Distinction:
The fundamental distinction lies in electron velocity representing instantaneous, random thermal motion, whereas drift velocity quantifies the net average motion in the direction of the applied electric field, which facilitates current flow.