Linear and rotary Potentiometer is used in controlling the audio equipment to adjust the volume of the audio signals.

The potentiometer in televisions are used to control the brightness of the picture, color, and so on.

The potentiometers are also used in the motion control in position feedback devices like servo motors.

The potentiometers used in transducers are used to design the displacement transducers.

The potentiometers are used as control volume in the radios of old cars.