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Give an example of a material each for which temperature coefficient of resistivity is positive and negative?

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(i) Positive: Cu (metals, alloys). (ii) Negative: Si (semiconductor).
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Educator having 8 years of experience in Teaching industry and M.Sc., B.Ed., CTET qualified.

(i) Positive: Cu (metals, alloys). (ii) Negative: Si (semiconductor).
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(i) Positive: Cu (metals, alloys). (ii) Negative: Si (semiconductor).
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i) Positive: Cu (metals, alloys). (ii) Negative: Si (semiconductor),germinum
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