Draw a graph showing the variation of re...

Draw a graph showing the variation of resistivity with temperature for nichrome. Which property of nichrome is used to make standard resistance coils?

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Draw a graph showing variation of resistivity with temperature for nichrome. Which property of nichrome is used to make standard resistance coils ?

Why are alloys used for making standard resistance coils?

Knowledge Check

Constantan wire is used in making standard resistance because its

A

melting point is high

B

density is high

C

specific resistance is low

D

temperature coefficient of resistance is negligible

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