Potentiometers are electronic components used to measure and adjust electrical resistance. These instruments are also known by different names, such as pot, variable resistor, or rheostat. Other synonyms for potentiometers include preset, trimmer, and adjustable resistor. These terms refer to their ability to set a specific resistance value. Another type of potentiometer is called a linear taper, which changes resistance in a linear manner. While logarithmic or audio taper potentiometers, adjust resistance logarithmically and are often used in audio equipment. Potentiometers are a crucial component in many electronic devices, and their accurate performance makes them a vital part of modern technology.