Which of the following material is used to make wire wound standard resistors?

Manganin

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Germanium

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Copper

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Carbon

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Solution

The correct option is D Manganin
Wire wound resistors are mainly produced with alloys, since pure metals have a high temperature coefficient of resistance. And hence Manganin is used which an alloy of typically 86% copper, 12% manganese, and 2% nickel.

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