What is temperature coefficient of resistance ? In which case the value of it becomes negative ?
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Coefficients approaching zero can be obtained by alloying certain metals. Anegative coefficient for a material means that its resistance decreases with an increase in temperature. Semiconductor materials (carbon, silicon, germanium) typically havenegative temperature coefficients of resistance.
Answered by
1
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Coefficients approaching zero can be obtained by alloying certain metals. A negative coefficient for a material means that its resistance decreases with an increase in temperature. Semiconductor materials (carbon, silicon, germanium) typically have negative temperature coefficients of resistance...
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