How does resistivity of conductor vary with temperature?

How does resistivity of semiconductor vary with temperature? Give reason for each case?

Define resistivity and state its SI unit. State and explain how to resitivity of a conductor varies with temperature.

How does the viscosity of a liquid vary with temperature?

How does the resistivity of a conductor and a semiconductor vary with temperature? Give reason for each case.

How does the electrolytic conductance vary with temperature ?

How does the conductivity of semi-conductors varies with the rise in their temperature ?

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

How does drift velocity of electrons in a metallic conductor vary with the rise of temperature?