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Why Alloys like Constantan and Manganin Are Used for Making Standard Resistors? - CBSE (Science) Class 12 - Physics

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Question

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

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

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Solution Why Alloys like Constantan and Manganin Are Used for Making Standard Resistors? Concept: Drift of Electrons and the Origin of Resistivity.
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