Explain how the resistivity of a conductor depends upon
number density 'n' of free electrons?

Explain how the resistivity of a conductor depends upon number density 'n' of free electrons?

Explain how does resistivity of a conductor depend upon number density n of free electron relaxation time tau ?

Resistance of a conductor depends on:

Explain how the resistivity of a conductor depends upon relaxation time tau ?

Define the term resistivity and write its S.I. unit. Derive the expression for the resistivity in terms of number density of free electrons and relaxation time.