How are trimming potentiometers depicted in TPC schematics?

Trimming potentiometers are depicted in TPC schematics as a zigzag line with an adjustable wiper symbol. This representation effectively conveys the adjustable nature of the potentiometer, allowing users to understand that it has a variable resistance that can be fine-tuned. The zigzag line indicates the resistive path within the potentiometer, while the adjustable wiper symbol represents the movable part that makes contact with the resistive material, thereby enabling the user to adjust resistance to a desired value.

This visualization is critical as it helps differentiate trimming potentiometers from fixed resistors and other components in a circuit. Furthermore, the specific design, with its zigzag line, emphasizes the function of the potentiometer, making it easier for technicians and engineers to identify and utilize them correctly in circuit designs.