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Most metallic conductors have a ________

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Most metallic conductors have a ________

(a) neutral temperature coefficient of resistance

(b) negative temperature coefficient of resistance

(c) positive temperature coefficient of resistance

(d) zero temperature coefficient of resistance

I had been asked this question in homework.

The above asked question is from Resistance Temperature Detector topic in section Transducers of Electrical Measurements

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Right option is (c) positive temperature coefficient of resistance

Easiest explanation: In general metallic conductors have a positive temperature coefficient of resistance. The resistance increases with an increase in temperature.

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