Going with the flow: Using analogies to explain electric circuits Going with the flow: Using analogies to explain electric circuits.
circuit diagrams utilise special symbols recognized by everyone who uses the drawings. The symbols on the drawings show how components like resistors, capacitors, insulators, motors, outlet boxes, lights, switches, and other electrical and electronic components are connected together.
The diagrams are a big help when workers try to find out why a circuit does not work correctly.
A circuit diagram or wiring diagram uses symbols to represent parts of a circuit.