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A potentiometer wire is made of constantan. What is the advantage of using this
A potentiometer wire is made of constantan. What is the advantage of using this material?
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Practice Questions
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Q1
A potentiometer wire is made of constantan. What is the advantage of using this material?
High conductivity
Low temperature coefficient
High resistance
Low cost
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Constantan has a low temperature coefficient, making it stable for accurate measurements.
Questions & Step-by-step Solutions
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Q
Q: A potentiometer wire is made of constantan. What is the advantage of using this material?
Solution:
Constantan has a low temperature coefficient, making it stable for accurate measurements.
Steps: 6
Show Steps
Step 1: Understand what a potentiometer is. It is a device used to measure voltage or resistance.
Step 2: Learn about the material used in the potentiometer wire, which is constantan.
Step 3: Know that constantan is an alloy, primarily made of copper and nickel.
Step 4: Find out what a low temperature coefficient means. It means that the resistance of the material does not change much with temperature.
Step 5: Realize that because constantan has a low temperature coefficient, it provides stable and accurate measurements.
Step 6: Conclude that using constantan in potentiometers helps ensure that the readings are reliable, even if the temperature changes.
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