A potentiometer is a three-terminal resistor with a sliding or rotating contact that kinds an adjustable voltage divider. Potentiometers are generally used to manage electrical indicators, reminiscent of quantity or brightness. They may also be used as sensors to measure the place of a mechanical system.
To hook up a potentiometer, you will want to attach the three terminals to an influence supply and a load. The facility supply is usually a battery, an influence provide, or one other voltage supply. The load is usually a resistor, a light-weight bulb, or one other electrical system.