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Last Updated On 01-06-2023 - By Jeesha Sara

Constantan wire is used in making standard resistances because its

a)

Specific resistance is low

b)

Density is high

c)

Temperature coefficient of resistance is negligible

d)

Melting point is high


Question ID - 150314 :-

Constantan wire is used in making standard resistances because its

a)

Specific resistance is low

b)

Density is high

c)

Temperature coefficient of resistance is negligible

d)

Melting point is high

1 Answer
5876 Votes
3537

Answer Key : (c) -

(c)

Due to the negligible temperature co-efficient of resistance of constantan wire, there is no change in it’s resistance value with change in temperature



Next Question :

For a given thermocouple neutral temperature

a)

Is a constant

b)

Depends on cold junction temperature

c)

Depends on inversion temperature

d)

Double that of cold junction temperature


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