Question

Expression for relation between drift velocity and electric current

Answer 1

If n is the number of free electrons per unit volume of the conductor, then the total number of free electrons in the conductor=A/n. ... Hence the current flowing through a conductor is directly proportional to the drift velocity. Explanation and Example. In a conductor there are large number of free electrons.

Answer 2

Answer:

Explanation:

Current is the flow of free charges, such as electrons and ions. Drift velocity is the average speed at which these charges move. Current is proportional to drift velocity , as expressed in the relationship . Here, is the current through a wire of cross-sectional area .