Why Copper Wire Is Not Used in Potentiometer

So copper wire is not used as a potentiometer wire. Temperature coefficient of resistance is large and specific resistance is less for the copper wire.

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Why copper wire is not used in potentiometer.

. Which wire is not used in potentiometer. As a result even a slight change in temperature can result in a large change in resistance affecting the experimental circumstances. On the other hand copper wire cannot be used as a fuse wire because it has a high melting point1094 deg C approx.

Copper as a good conductor will not show a smooth potential drop over its length. As a result using a Copper wire as a potentiometer wire will be impractical. 1Low resistivity 2 High Temperature Coefficient of resistance.

Copper is not used in potentiometer due to the following reasons. It is not advisable to use copper wire everywhere. Normally the wire is comprised of manganin or constantan.

Copper wire is not suitable forpotentiometer because it has high temperature coefficient of resistance and small resistivity. Copper should not be used for making potentiometer wire because temperature coefficient of resistance for copper is large and when current flows through wire its specific resistance and resistance per unit length begins to vary due to heat generation. Copper will not melt easily when a high electric current passes through it and may damage the electrical appliances.

Copper is not used as potentiometer wire because Copper has low resistivity and a high temperature coefficient of resistance and hence we do not use it in potentiometer. Copper wire is not suitable forpotentiometer because it has high temperature coefficient of resistance and small resistivity. Copper has low resistivity and a high temperature coefficient of resistance and hence we do not use it in potentiometer.

Was this answer helpful. What is a potentiometer Class 12. Why copper wire is not used in potentiometer.

A potentiometer comprises a long wire with a uniform space of the cross area. Why copper wire is not used in potentiometer. Copper has low resistivity and a high temperature coefficient of resistance and hence we do not use it in potentiometer.

Potentiometer is a device used to compare the emf. Copper has low value of resistivity and high value of temperature coefficient of resistance. Copper is not used in potentiometer due to the following reasons.

Copper is not used in potentiometer due to the following reasons. Each piece of wire has a length of one. So even a very small change in temperature can cause a high change in its resistance which will affect the experimental conditions.

Typically it will be copper strips. Sometimes the wire might be cut into certain pieces and each piece is associated toward the end focuses through a thick metallic strip. As a result resistance of the wire will be small and it will difficult to get a null point during the experiment.

Why is copper wire not used in potentiometer. Electromotive force of two cells to measure the internal resistance of a cell and potential difference across a resistor. Why is copper wire not used in potentiometer.

Because of its low resistivity and high temperature coefficient of resistance copper is not used in potentiometers. Copper wire is not used for making potentiometer wires. So even a very small change in temperature can cause a high change in its resistance which will affect the experimental conditions.

Instead aluminum is preferred because of its higher resistance at lower temperatures and its ability to be wound on a reel. If you insist on creating a potentiometer out of copper wire consider the following options. As a result the circuit is broken and current stops flowing.

Alow resistivity and bhigh temperature coefficient of resistance. Copper wire is not used in potentiometer because of its low resistivity. Because copper wire has a high temperature coefficient of resistance and low resistivity it is not appropriate for potentiometers.

Because copper wire has a high temperature coefficient of resistance and low resistivity it is not appropriate for potentiometers.

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