Constantan is an alloy composed of:

1.	Constantan is an alloy composed of:
A.	86% copper, 12% manganese and 2% nickel
B.	76% nickel, 21% chromium, 2% manganese and 1% iron
C.	60% copper and 40% nickel
D.	40% copper, 40% nickel and 20% carbon
Answer» D. 40% copper, 40% nickel and 20% carbon

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Constantan is an alloy composed of:

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