Circuit Symbols

For your exam, you should memorise the following circuit symbols:

ammeter
Ammeter
cell
Cell
fuse
Fuse
battery of two cells
Battery

diode
Diode

battery of three cells
Battery

lamp
Lamp

lamp (old)
Old Lamp
switch (open)
Open switch (off position)

no current flows

switch (closed)
Closed switch (on position)

current does flow

light dependent resistor (ldr)
Light dependent resistor
thermistor
Thermistor

variable resistor
Variable resistor

voltmeter
Voltmeter

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