

LESSON 6  CIRCUIT DIAGRAMS The different types of components we have encountered each have a symbol to represent them in a circuit diagram. A circuit diagram is just a picture of how all the components in a circuit are connected together. Here are the symbols for the components we have met:
Here is a complete circuit diagram. Don't worry about what the circuit does (it just lights up the LED) but notice the fact that you can trace a continuous route from the battery through the resistor and LED and back to the battery, i.e. it is a circuit.
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