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Basic electricity - Circuit Symbols

You should be able to interpret and/or draw circuit diagrams using standard symbols. The following standard symbols should be known:
 
connecting wire
connection between two crossing wires
two crossing wires that are not connected to each other
switch (open) 
switch (closed)
signal lamp
filament lamp
cell
battery
power supply
fuse
resistor
diode
variable resistor
thermistor
ammeter
voltmeter
L.D.R. (light dependant resistor)

 

Circuits are drawn as a series of horizontal and vertical lines. There are no diagonals, curved lines or wavy lines.

Symbols are always put 'within' a vertical or horizontal line. They are never drawn 'in a corner'.

Use a ruler to draw the lines - don't leave 'gaps' - make the circles about the same size.

Aim to make your diagram look neat and 'professional'.