Question

Define drift velocity. Write the expression for the current in a conductor of cross

sectional area A in terms of drift velocity.​

Answer 1

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. In general, an electron in a conductor will propagate randomly at the Fermi velocity, resulting in an average velocity of zero.

Answer 2

Explanation:

Drift velocity : It is the average velocity acquired by the free electrons superimposed over the random motion in the direction opposite to electric field and along the length of the metallic conductor. i.e., current, l = Q/t = N/t = Anevd.