State Ohm' law and deduce it from the knowledge of drift velocity of free electrons in a conductor carrying current.

Derive an expression for drift velocity of electrons in a conductor. Hence deduce ohm's law.

If n,e,A and v_(d) are free electron density inside conductor , charge of electron , area of cross-section of conductor and drift velocity of free electrons inside conductor, then current l through the conductor is

if E denotes electric field in a uniform conductor and v_(d) the corresponding drift velocity of free electrons in the conductor, then which of the following graph is correct

A current of 16 A is made to pass through a conductor in which the number of density of free electrons is 4xx10^(28)m^(-3) and its area of cross section is 10^(-5)m^(2) . The average drift cross section is 10^(-5)m^(2) . The average drift velocity of free electrons in the conductor is