Electronic symbols
All electrical components have a symbol. These symbols are often in circuit diagrams to make the diagram easier to read. All commonly used symbols are in the table below.
battery

Ground

Resistor

Capacitor

Diode

LED

Light bulb

npn transistor

pnp transistor

Switch closed

Switch open

And gate

Or gate

Not gate

Nand gate (Not and)

Nor gate (Not or)

Xor gate (Exclusive or, eor)

Xnor gate (Exclusive not or, enor)

Photoresistor

Voltage divider

NTC resistor

Voltage meter

Current meter

Resistance meter

Galvano meter

Photocell

AC dynamo

AC motor

DC dynamo

DC motor

Antenna

Fuse

Microphone

Oscilloscope

Speaker

Transformer
