Section 2 Electricity


Notes

Electric circuit symbols

It is important to become familiar with the following electric circuit symbols for the rest of this topic.You have to be able to recognise and draw them.

conductor
thermistor
cell
diode
battery of cells
light-emitting diode
d.c. power supply
ammeter
a.c. power supply
voltmeter
junction of conductors
lamp
earth or ground
motor
switch
generator
fuse or circuit breaker
loudspeaker
fixed resistor
microphone
variable resistor
transformer
light-dependent resistor
heater
electric bell
 
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