Cell
Picture
One cell provides electrical energy. Its symbol has one long and one short line.
Electrical Symbols & Simple Diagrams
Discover the pictures and symbols used to draw an electrical circuit.
Explore 15 symbols
Battery
Picture
This symbol represents multiple cells. The long lines mark the positive side.
Wire
Picture
A wire provides a path for electric current.
Switch
Picture
A switch opens or closes a circuit. The symbol here shows an open switch.
Lamp
Picture
A lamp changes electrical energy into light and heat.
Motor
Picture
A motor changes electrical energy into movement.
Resistor
Picture
A resistor limits current and changes electrical energy into heat.
Connected Wires
Picture
A dot shows that the wires are connected. Crossing lines without a dot may mean no connection.
Fuse
Picture
A fuse opens the circuit when the current becomes too large.
Ground
Picture
This symbol marks a connection to earth. Grounding is part of an electrical safety system.
Transformer
Picture
A transformer raises or lowers AC voltage.
Unconnected Wires
Picture
The wires cross but are not connected. The bridge makes this clear.
Pushbutton
Picture
This normally open pushbutton closes the circuit while you press it. It opens again when released.
LED
Picture
An LED gives off light when current flows in the correct direction. Outward arrows represent light.
Bell
Picture
An electric bell uses electrical energy to make sound.
Symbols can vary between standards. These are common learning examples.
Try a simple circuit
Click the switch to open or close this virtual battery circuit.
Explore on screen. Do not experiment with wall outlets or household wiring.