The purpose of a legend on a circuit diagram is to ____.

The purpose of a legend on a circuit diagram is to identify the abbreviated diagram components. A legend, often found in the corner of the diagram, serves as a key or guide that explains the symbols used in the circuit. These symbols represent various electrical components such as resistors, capacitors, switches, and power sources. By using a legend, anyone reviewing the diagram can quickly understand what each symbol stands for, facilitating easier interpretation and troubleshooting of the circuit. This is especially useful in complex diagrams where components may not be immediately recognizable without clarification.