Potentiometers
Potentiometers, also known as variable resistors, are electronic components that are used to adjust the output voltage of a circuit. They consist of a resistive element with a wiper that moves along it, allowing for variable resistance values and the creation of a voltage divider.
Rotary potentiometers, which have a rotating shaft, are one of the most common types of potentiometers. They typically have three terminals: two end terminals and a third terminal for the adjustable wiper. The position of the wiper determines the resistance value and output signal of the potentiometer.
A potentiometer can have a linear or logarithmic taper, depending on the desired relationship between wiper position and resistance value. It can also come with multiple channels for controlling multiple outputs, and some even have a digital interface for programming and calibration.
A potentiometer is commonly used in audio equipment for volume control and other electronics projects that require adjustable resistance values. It can also be used as a sensor for measuring variables such as temperature or position. To adjust the potentiometer, simply turn the knob or slide the pot to the desired position.
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