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A potentiometer ( /pɵˌtɛnʃiˈɒmɨtər/), informally, a pot, in electronics technology is a component, a three-terminal resistor with a sliding contact that forms an adjustable voltage divider. If only two terminals are used, one end and the wiper, it acts as a variable resistor or rheostat.

Potentiometers are commonly used to control electrical devices such as volume controls on audio equipment. Potentiometers operated by a mechanism can be used as position transducers, for example, in a radio control joystick or steering wheel. Potentiometers are rarely used to directly control significant power (more than a watt), since the power dissipated in the potentiometer would be comparable to the power in the controlled load.

In radio control, potentiometers may be also be found on the proportional control on a 4-in-1 or the gain on a gyro.

This page uses content from the English Wikipedia. The original article was at Potentiometer. The list of authors can be seen in the page history. As with EFlightWiki, the text of Wikipedia is available under the GNU Free Documentation License.