how temperature vary on alloys metals conductors semi conductors
Answers
Answer:
When the temperature in increased the forbidden gap between the two bands becomes very less and the electrons move from the valence band to the conduction band. ... Thus when the temperature is increased in a semiconductor, the density of the charge carriers also increases and the resistivity decreases.
Answer:
Metals, including alloys, have free electrons as charge carriers. Their movement controls by defects. One of defects of usual metal is oscillations of atoms due to temperature. More temperature - more oscillations - more collisions of electrons with atoms - less mobility - more resistivity. In alloys, like constantan, atoms are in disorder so alloys have big resistivity. Their additional disorder due to temperature increase is insignificant. That is why alloys have no temperature dependence of resistivity. The same picture is with metal glasses.
PLZ MARK AS BRIANLIEST,FLW ME AND THX FOR THE SUPERB QUESTION