When temperature of a metal increases ,

When temperature of metal increases, does the resistance increases or decreases?

A: When temperature of a metallic wire is increased, its resistance increase . R : As the temperature is increaed , average relaxtion time increase.

A: When temperature of a metallic wire is increased, its resistance increase . R : As the temperature is increaed , average relaxtion time increase.

Assertion : The work function of a metal is different at different temperature . Reason : The increases in the temperature of metals decreases the work function of metal.

A metal wire is subjected to a constant potential difference . When the temperature of the metal wire increases , the drift velocity of the electron in it

Assertion: The kinetic energy of the electrons increases when temperature of the wire increases. Reason: An increasing temeperature conductivity of metallic wird decreases.