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What does a negative temperature coefficient of resistance mean? 
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#1
Feb1209, 12:23 PM

P: 33

If a material has a negative temperature coefficient or resistance, what does this mean?
Does it mean that as temperature increases, the resistance will increase instead of decrease. Or something totally different? Any help at all would be greatly appreciated! Many Thanks! 


#2
Feb1209, 12:48 PM

Sci Advisor
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P: 8,954

Other way round.
The conductivity increases with temperature, ie resistance decreases. In general, electrical resistivity of metals increases with temperature (+ve), resistivity of semiconductors decreases with increasing temperature (ve). 


#3
Feb1209, 12:55 PM

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PF Gold
P: 2,532




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