Potentiometers (variable resistors), etc.

I am not knowledgeable on this subject and can only answer questions.

The following was generated by AI:

Potentiometers are used in electronic circuits for the following purposes:

Volume adjustment:
Used to adjust the level of analog signals, such as the volume knobs on audio equipment.
Brightness adjustment:
Used to adjust the intensity of light, such as adjusting the brightness of lighting fixtures and displays.
Position detection:
Functions as a sensor to convert mechanical positions into electrical signals, such as detecting the angle of a robot arm or the operation of a joystick.
Voltage divider:
Used to adjust resistance values and divide voltage to obtain a specific voltage within a circuit.
Adjustment components:
Sometimes incorporated as components for fine-tuning in the adjustment and calibration of electronic circuits.