Circuit Symbols
Power Supply Symbols

CELL
Single container chamical reactor. Output DC 1.2V, 1.5V, 3.7V

SWITCH
It is use to ON/ OFF a device by breaking the circuit. There are many types of switches and symbols.

BATTERY
Many cell combine together to make a battery. DC source

SOLAR CELL
It converts sunlight energy in to electric current.

FUSE
Fuse is used as a safety device. When there is short circuit it blows and break circuit.

TRANSFORMER
It is mutual inductance device used to convert voltage and current in to different level.
Electronic Symbols

DIODE
It is semi-conductor device used to flow current in one direction.

ZENER DIODE
It is used for regulating over limit voltage.

TRANSISTOR
Semi-conductor device use to amplify weak signals.

LED
It converts electric current in to light. Apart from regular LED other types are IR LED, Laser LED, UV LED.

TRANSISTOR
Semi-conductor device use to amplify weak signals.

IC
Integrated Circuit - it is an assembly of electronic components, fabricated as a single unit
Passive Elements

RESISTANCE
Electrical resistance is the opposition to current flow.

CONDENSER
Electrolytic capacitor. Use for storing charges.

INDUCTOR
Inductor stores energy creating magnetic field.

BULB
It is used for lighting purpose. This symbol is used for filament bulb.

CAPACITOR
Capacitor store energy in the form of electric field

SPEAKER
It converts electrical waves into sound waves.