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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?

1. The material's resistance decreases as temperature increases
2. The material's resistance increases as temperature increases
3. The material's resistance increases as temperature decreases
4. 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.