What happens to resistance if the temperature of a conductor increases?

When the temperature of a conductor increases, the resistance typically increases as well. This phenomenon occurs due to the behavior of the atoms in the conductor. As temperature rises, the atoms gain kinetic energy and vibrate more intensely. This increased movement creates more collisions between the electrons (which are the charge carriers) and the vibrating atoms, thereby impeding the flow of electrons.

In metallic conductors, this result is especially pronounced as metals have a significant positive temperature coefficient of resistance. As the temperature rises, the additional collisions between electrons and the vibrating atoms result in an overall increase in resistance, which can affect the performance of electrical circuits and components.

This understanding is crucial for practical applications, such as in electrical engineering and electronics, where temperature variations might impact circuit design and functionality.