We use circuit symbols to draw diagrams of electrical circuits, with straight lines to show the wires.
The diagram shows some common circuit symbols.
external image circuit_symbols.gif

The idea of a circuit diagram is to use circuit symbols instead of drawing each component in the circuit.

ACTIVITY Complete the table.


ACTIVITY Name the components you can see in the following circuit diagrams:

external image circuit_diagram.gif

external image two_circuits.gif
external image three_circuits.gif