Explain the term 'drift velocity' of electrons in a conductor.

Drift velocity is defined as the average velocity with which free electrons in a conductor get drifted in a direction opposite to the direction of the applied electric field.

Let n be the number of free electrons per unit volume of the conductor.

Then, total number of free electrons in the = n x volume of the conductor = n x Al.

Drift velocity is defined as the average velocity with which free electrons in a conductor get drifted in a direction opposite to the direction of the applied electric field.

the expression for the current through a conductor in terms of 'drift velocity'. Is l = neAv_d.