What kind of representation uses symbols to illustrate an electrical circuit?

A circuit diagram is the correct choice because it uses standardized symbols to represent the various components of an electrical circuit, such as resistors, capacitors, and power sources. This symbolic representation allows for clear communication of the circuit’s design and functionality, making it easier for technicians and engineers to understand and analyze the circuit without needing to interpret a physical layout.

The use of specific symbols in circuit diagrams follows conventions set by standards organizations, which helps ensure consistency across different diagrams and designs. This enables anyone familiar with electrical engineering to accurately interpret how the circuit operates and diagnose issues.

Blueprints are detailed architectural drawings that represent the design of buildings or structures, not specifically electrical circuits. Flowcharts are used for illustrating processes or algorithms, while graphs typically represent numerical data visually, showing relationships between different variables, but do not depict the structure of electrical circuits.