How are resistors represented in TPC schematics?

In TPC schematics, resistors are represented by a zigzag line or a rectangular block. This representation visually communicates the resistance element to anyone reading the schematic. The zigzag pattern is widely accepted in electronic schematics because it effectively signifies a resistor's function within a circuit, making it immediately recognizable.

The alternative representations, such as series of dots or simple straight lines, do not convey the properties of resistance and could lead to confusion in interpretation, as they are not standard symbols for resistors in electronic schematics. Similarly, a triangle with a slash does not correspond to any common resistor representation, further solidifying that the zigzag or rectangular block is the correct and most easily understood depiction.