MCQ
Constantan wire is used in making standard resistances because its
- ASpecific resistance is low
- BDensity is high
- ✓Temperature coefficient of resistance is negligible
- DMelting point is high
✓
Answer
Correct option: C.
Temperature coefficient of resistance is negligible
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.
(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.
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