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f-alpha.net » Electronics » Electronics Lab » Electronic Components » Potentiometer

Potentiometer

A potentiometer has three terminals. If only two terminals are used, the potentiometer acts like a variable resistor. If all terminals are connected, it behaves as an adjustable voltage divider.

Various sliding-, rotating and trimming potentiometer. (Enlarge)

Nominal Resistance

The nominal resistance of a potentiometer is the resistance value between the end terminals and is specified by the unit Ohm.

Known applications of potentiometers are as volume controls in audio systems or sensors in joysticks...

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