Home »
MCQs »
Basic Electrical Engineering MCQs
Amongst which of the following statement is True, if a material has a positive temperature coefficient of resistance?
33. Amongst which of the following statement is True, if a material has a positive temperature coefficient of resistance?
- The material's resistance decreases as temperature increases
- The material's resistance increases as temperature increases
- The material's resistance increases as temperature decreases
- None of the above
Answer: B) The material's resistance increases as temperature increases.
Explanation:
A material with a positive temperature coefficient of resistance (TCR) has a resistance that increases as the temperature rises. Most conductors, including metals such as copper, aluminum, and silver, exhibit this characteristic.