Basic Electrical Engineering - 4. TEMPERATURE COEFFICIENT OF RESISTANCE || At Various Temperature || Explained in Nepali

The effect of temperature upon resistance varies according to the type of material as discussed below : 1. The resistance of pure metals (e.g. copper, aluminium) increases with the increase of temperature. They have positive temperature co-efficient of resistance. 2. The resistance of electrolytes, insulators (e.g. glass, mica, rubber etc.) and semiconductors (e.g. germanium, silicon etc.) decreases with the increase in temperature. Hence these materials have negative temperature co-efficient of resistance. 3. The resistance of alloys increases with the rise in temperature but this increase is very small and irregular. ...................................................................................................................... EduLogue By Bikram Acharya Connect with EduLogue on: ========================================= EMAIL : [email protected] FACEBOOK : https://www.facebook.com/EduLogue YOUTUBE : https://www.youtube.com/c/EduLogue #Electric Circuit #LearnElectricCircuit