Name three materials whose resistivity decreases with rise in temperature .

Name one material whose resistivity decreases with rise in temperature. Explain briefly on the basis of free electron theory why the resistivity decreases.

give examples of materials whose electrical resistivity decreases with increases in temperature.

For metal conductors, the electrical resistivity decreases with the rise in temperature.Is it true?

For metal conductors, the electrical resistivity decreases with the rise in temperature.(True/False)

Why resistivity of metal decreases with increase in temperature..

(a) Whose resistivity increases more with temperature : of an alloy or of its constituent metals ? (b) Name a material whose resistivity becomes zero at a particular temperature ?

Name one substance whose resistance decreases with increase of temperature.

The materials resistance of which decreases with increases in temperature (i.e. the temperature coefficient of resistance is negative) are called