Conductors have positive temperature coefficient of resistance. So as temperature rises resistance also increases. What is the reason for this?
While in insulators and semiconductors, resistance decreases with temperature?
When temperature is rised , electrons should break free. Why that does not happen in insulators and semiconductors?
While in insulators and semiconductors, resistance decreases with temperature?
When temperature is rised , electrons should break free. Why that does not happen in insulators and semiconductors?