When in electric field is applied to a metallic conductor at room temperature the thermal speed of electrons is……….and drift velocity of electrons is …….

When a potential difference (V) is applied across a conductor, the thermal speed of electrons is

When a potential difference (V) is applied across a conductor at temperature T, the drift velocity of electrons is proportional to

When a potential difference v is applied across a conductor at temperature T, the drift velocity of electrons is proportional to

Prove that electric current density of a metallic conductor is directly proportional to the drift speed of electrons?

Statement I: If an electric field is applied to a metallic conductor, the free electrons experience a force but do not accelerate, they only drift at a constant speed. Statement II: The force exerted by the electric field is completely balanced by the Coulomb force between electrons and protons .

Drift velocity in a metallic conductor: At room temperature there are large number of free electrons having zero average velocity, but when electric field is applied, the free electrons start moving in a direction opposite to the direction of the applied field with a velocity called drift velocity. The magnitude of drift velocity is