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Why Alloys like Constantan and Manganin Are Used for Making Standard Resistors? - Physics

Why alloys like constantan and manganin are used for making standard resistors?

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Solution

Alloys like constantan and manganin are used for making standard resistors because
(a) they have high value of resistivity
(b) temperature cofficient of resistance is less

Concept: Drift of Electrons and the Origin of Resistivity
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