The potentiometer is a type of device that is used to measure unknown voltages by comparing them to known voltages. In other words, a potentiometer is a three-terminal device that is used to manually adjust resistances to measure potential variations. The cell or any other supply source draws the known voltage.

The comparison approach is used by the potentiometer, which is more accurate than the deflection technique. As a result, it’s primarily used in situations where greater precision is necessary or no current flows from the source under examination. The potentiometer is a component of an electrical circuit that is used to control volume.

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The potentiometer is particularly accurate since it uses the comparison approach to determine unknown voltages rather than the deflection pointer approach.

It determines the null or balance point without the use of electricity.

The source resistance has no effect on the potentiometer’s operation because no current passes through it while it is balanced.

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