Constantan contains_______________?
Correct answer: D. copper and nickel
- A. silver and tin
- B. copper and tungsten
- C. tungsten and silver
- D. copper and nickel
Explanation
Constantan is a copper-nickel alloy, commonly containing roughly 55% copper and 45% nickel. Its relatively high and stable resistivity makes it useful in resistance wires and thermocouples.
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