Question

what is drift velocity ---?!​

Answer 1

$\large\underline{\orange{\sf \red{\bigstar} Concept\: Of\: Drift \: Velocity:-}}$

• ◈ Drift velocity is the average velocity with which electrons 'drift' in the presence of an electric field.

• >> Formula :- vd = I / neA

$\large\underline{\green{\sf \blue{\bigstar} Where:-}}$

• ◈ vd = drift velocity

• ◈ I = current flow

• ◈ n = free electron density

• ◈ e = charge of an electron

• ◈ A = cross sectional area

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Answer 2

Step-by-step explanation:

In physics a drift velocity is the average velocity attained by charged particles, such as electrons, in a material due to an electric field.

It is is the average velocity with which electrons 'drift' in the presence of an electric field. It's the drift velocity (or drift speed) that contributes to the electric current. In contrast, thermal velocity causes random motion resulting in collisions with metal ions.

Hope it helps