Electricity - Circuits & symbols: Symbols

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Activity 1: Symbols

To simplify the drawing of an electric circuit, symbols are used.

Circuit diagram symbols

Electric circuit and equivalent circuit diagram
The circuit shown can be represented by the circuit diagram below it.

Which end of a torch battery is marked with the +sign? Show this on a diagram.

Circuit diagrams

Circuit diagrams are usually drawn with straight lines at right angles to each other.