What generally happens to the electrical resistance of a metal conductor as its temperature increases?

Explanation

In most metal conductors, electrical resistance increases with temperature because heat causes atoms to vibrate more, which disrupts the flow of electrons. This is why an incandescent bulb filament has higher resistance when hot than when cold. Semiconductors, interestingly, often behave the opposite way, with resistance decreasing as temperature rises. Explore more Everyday Science MCQs on mcqstutor to keep practicing.