Which of the following is included in the five part definition of a schematic?

The inclusion of "shows how a system works" as part of the five-part definition of a schematic highlights the fundamental purpose of a schematic diagram. A schematic is designed not only to represent the individual components within a circuit but also to illustrate the relationships and interactions between these components, effectively providing a visual explanation of the entire system's functionality.

This understanding is key, as a schematic serves as a blueprint for engineers and technicians, allowing them to analyze, troubleshoot, and construct electronic circuits. By focusing on how a system operates, the schematic ensures that viewers can grasp the flow of current, the roles different components play, and how they integrate to achieve the intended electrical function. This overview is critical in fields like electrical engineering and electronics, where comprehending a system’s operation is essential for effective design and maintenance.