Account for the following : The electrical conductivity of a metal decrease wih rise in temperature while that of semi-conductor increases.

Why does the Conductivity of metals decrease with rise in temperature?

How does the electrical conductivity of super conductors vary with temperature?

What is the reason for electrical conductivity in a) metals b) Ionic solids. c) semiconductors

The highest electrical conductivity of the following aqueous solutions is of

Electrolytic conduction differs from metallic conduction in the case of electrolytic conduction : The resistance increases with increasing temperature, The resistance decreases with increasing temperature, The flow of current does not generate heat, The resistance is independent of the length of the conductance