What type of diagram shows the operation of individual devices and components used in circuits?

The operational diagram is designed to illustrate the functioning of individual devices and components within a circuit. This type of diagram focuses specifically on how each component operates within the system, providing clear insights into their interactions and roles. It emphasizes the operational relationships between different devices, enabling technicians and engineers to understand the overall behavior of the circuit and troubleshoot issues effectively.

While the one-line diagram offers a simplified representation of a circuit, showing only the main connections and components without delving into individual functionality, pictorial drawings provide a visual depiction of devices but do not detail their operation. Function block diagrams represent systems through interconnected blocks that show functional relationships but do not typically illustrate individual device operations in the same manner as operational diagrams. Therefore, the operational diagram stands out as the key resource for comprehending the detailed workings of each component within a circuit.