Question

what is mean by drift velocity ?

Answer 1

it is velocity of mobile electrons inside the conductor when elctrisity is paased through it. . .

Answer 2

Drift velocity is defined as the average velocity with which free electron gets drifted in a direction opposite to the direction of the applied electric field.
Its numerical value is\[v _{d}=\frac{ -eE \tau }{ m }\]
where e-->is charge on electron
E--> is applied Electric field
\[\tau\] -->is relaxation time
m-->is mass of the electron

Answer 3

drift velocity is the velocity of electron without influence of applied electric potential