Question

Which element has negative temperature coefficient of resistance?

Answer 1

Answer is Carbon, silicon and germanium.

Temperature coefficient of resistance is the change in resistance per degree of temperature change.

All materials have a certain specific resistance (at 20℃), and the resistance changes when temperature is changed.

For pure metals, this coefficient is a positive, which means resistance increases with increasing temperature.

For the elements carbon, silicon, and germanium, this coefficient is negative, meaning resistance decreases with increasing temperature

Answer 2

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Answer is Carbon, silicon and germanium.

Temperature coefficient of resistance is the change in resistance per degree of temperature change.

All materials have a certain specific resistance (at 20℃), and the resistance changes when temperature is changed.

For pure metals, this coefficient is a positive, which means resistance increases with increasing temperature.

For the elements carbon, silicon, and germanium, this coefficient is negative, meaning resistance decreases with increasing temperature.