Why is copper wire not commonly used in potentiometers?

AI Thread Summary
Copper wire is not commonly used in potentiometers due to its low resistivity, which can lead to inaccurate readings. Additionally, copper experiences work-hardening, making it less suitable for applications requiring flexibility. The formation of copper oxide can also affect performance negatively. While these issues could be addressed, using resistance wire is a more straightforward solution. Overall, resistance wire offers better reliability and performance for potentiometer applications.
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I’ve learned that copper wire is not generally used in a potentiometer. Is there any specific reason for this?
 
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Generally the big problems you would face in using copper are: (1) low resistivity; (2) work-hardening; and (3) the formation of copper oxide. All of these could be overcome, but it's so much easier to just use resistance wire.
 
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