potenciálmér
A potenciálmér, often translated as a potential meter or potentiometer, is an electrical component used to control voltage. It consists of a resistive element with a sliding or rotating contact called a wiper. As the wiper moves along the resistive element, it changes the resistance between the wiper and one of the terminals, thus altering the output voltage. This makes it a variable resistor.
Potentiometers are commonly used as volume controls in audio equipment, where they adjust the signal strength.
There are several types of potentiometers, including rotary potentiometers, which have a knob that is turned,