Question

Drift velocity depends upon? ​

Answer 1

It is the average velocity that a particle such as electron attains in a material due to electric field. So it depends upon Mobility and Mobility. Above given factors also affect the drift velocity. In a conductor you have where A = cross sectional area, n=carrier number density, e=carrier charge, I = current.

additional information:-

what is drift velocity?

a drift velocity is the average velocity attained by charged particles, such as electrons, in a material due to an electric field. In general, an electron in a conductor will propagate randomly at the Fermi velocity, resulting in an average velocity of zero.

Answer 2

Answer:

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Explanation:

The drift velocity does not depend on the length or the cross sectional area of the wire, when dealing with a macroscopic (ordinary, everyday life) wire. However, if the wire is, say, too short, e.g. comparable to the average distance a charge carrier travels before undergoing a collision, then it might begin to depend on the wire length, but for all practical intents and purposes a wire won't be that short.

And we also know that,

v

d

=

eNA

I

where I = current , e = charge on electron , N = no. of electrons , A = area of cross-section.