Figure 1 below presents 17 circuit symbols for a variety of circuit components like cell, battery, switch open, switch closed, ammeter, voltmeter, motor, resistor, thermistor, fuse, diode, LED (Light Emitting Diode), LDR (Light Dependent Resistor), Filament lamp, variable resistor, d.c. supply, & a.c. supply.
Symbols & functions of Common components
The following tables describe some of the common components of electrical circuits, their functions, images, and the symbols that are used to represent them in circuit diagrams.
Figure 2 above lists down the functions, images, and symbols of wire, junction, unconnected wires, battery, resistor, and potentiometer.
Figure 3 above lists down the functions, images, and symbols of the capacitor, diode and LED.
Figure 4 above lists down the functions, images, and symbols of the switch, light, transformer, voltmeter, ammeter, ohmmeter, and fuse.
Figure 5 above lists down the function, image, and symbol of the ground.