Potentiometer

A potentiometer ( /pɵˌtɛnʃiˈɒmɨtər/), informally a pot, is 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.

A potentiometer measuring instrument is essentially a voltage divider used for measuring electric potential (voltage); the component is an implementation of the same principle, hence its name.

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 joystick. 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.

Read more about PotentiometerPotentiometer Construction, Rheostat, Digital Potentiometer, Membrane Potentiometer, Potentiometer Applications, Theory of Operation, Early Patents

Other articles related to "potentiometer, potentiometers":

Center Tap
... of a transformer or inductor, or along the element of a resistor or a potentiometer ... Potentiometer tapping provides one or more connections along the device's element, along with the usual connections at each of the two ends of the element, and the slider connection ... Potentiometer taps allow for circuit functions that would otherwise not be available with the usual construction of just the two end connections and one slider ...
Riostat - Membrane Potentiometer
... A membrane potentiometer uses a conductive membrane that is deformed by a sliding element to contact a resistor voltage divider ... The service life of these types of potentiometers is typically 1 million to 20 million cycles depending on the materials used during manufacturing ... Membrane potentiometer manufacturers offer linear, rotary, and application-specific variations ...
Riostat
... A potentiometer ( /pɵˌtɛnʃiˈɒmɨtər/), informally a pot, is a three-terminal resistor with a sliding contact that forms an adjustable voltage divider ... A potentiometer measuring instrument is essentially a voltage divider used for measuring electric potential (voltage) the component is an implementation of the same ... Potentiometers are commonly used to control electrical devices such as volume controls on audio equipment ...
Digital Potentiometer
... A digital potentiometer is a digitally controlled electronic component that mimics the analog functions of a potentiometer ... the ladder determines the resistance ratio of the digital potentiometer ... The amount of steps of a digital potentiometer is normally indicated with a bit value e.g ...