Which one of the following does not have negative temperature co-efficient ____________?
Correct answer: A. Aluminium
- A. Aluminium
- B. Paper
- C. Rubber
- D. Mica
Explanation
Aluminium is a metal and its resistance generally increases with temperature, giving it a positive temperature coefficient. Paper, rubber, and mica are insulating materials that are commonly treated as having negative temperature coefficients in this context.
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