How many connections does a potentiometer always have?

A potentiometer is a type of variable resistor that typically has three terminals. Two of these terminals are connected to a resistive element, while the third terminal is connected to a movable wiper or slider that taps into the resistive element at a variable point. This design allows the potentiometer to adjust the resistance and thus control the voltage output or current in a circuit.

The two terminals connected to the ends of the resistive element provide the full resistance, while the third terminal allows for the adjustment of the output voltage by moving along the resistive path. This functionality is widely used in applications such as volume controls in audio equipment, adjusting brightness in lights, and many other settings where variable resistance is needed.

Options suggesting fewer than three connections would not adequately describe the standard configuration of a potentiometer, as those would limit the component’s ability to function as intended. Similarly, options proposing more than three connections describe configurations not typical for standard potentiometers but may refer to other types of variable resistors or additional circuitry.