A potentiometer wire is made of constantan. What is the advantage of using this
Practice Questions
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
Questions & Step-by-Step Solutions
A potentiometer wire is made of constantan. What is the advantage of using this material?
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.
Temperature Coefficient – Constantan has a low temperature coefficient, meaning its resistance changes very little with temperature variations, which is crucial for accurate measurements in a potentiometer.
