What action should be taken if a potentiometer is used in a circuit?

Using a potentiometer in a circuit necessitates proper maintenance to ensure it operates effectively and accurately. The correct action, in this case, is to calibrate the potentiometer regularly. Calibration helps to verify that the potentiometer provides accurate resistance values and functions as intended within the circuit, especially since its primary role is to adjust voltage levels or current flow.

Over time, the mechanical components of a potentiometer may wear down or accumulate dirt, which can lead to inaccuracies. Regular calibration addresses these potential issues, ensuring that the potentiometer maintains its specified performance standards. This helps to enhance the reliability and efficiency of the circuit that incorporates the potentiometer, as well as prolong its functional life.