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A potentiometer , also known as a variable resistor, is a three-terminal electronic device used to measure the electromotive force (EMF) of a cell and its internal resistance. It finds applications in various electronics equipment, allowing users to modify electrical circuits for desired outputs. In radios, potentiometers are commonly used for volume control and in other audio electronic equipment. This is a potentiometer tutorial where you'll learn how it works and with examples of how potentiometers can be wired for various circuits. Potentiometer – Working, Circuit Diagram, Construction & Types Resistor, a small bundle of resistance, is one of the most used basic components in an electric circuit. Mostly used to regulate the current flow by adding/subtracting resistance from the circuit, these resistors are available in many shapes and sizes. These resistors can be broadly classified as fixed and variable resistors. As their respective names suggest, a fixed resistor has a single fixed value of resistance, whereas a ... Potentiometer is an instrument that is used the determine the potential (voltage) between two points by performing a comparison with a known voltage.
