Cables and Plugs
How many wires are in a plug?
3
Why do we wrap our wires in plastic?
It is a good insulator
What is the mains voltage?
230V
What is the name of the blue wire
Neutral
What is the purpose of the Earth wire?
Redirect current to ground if there is a fault
What is the mains frequency?
50Hz
Which wire is the wire that carries the current?
Live wire
This component has a thin wire that melts if the current is too high
A fuse
What type of current does our mains supply use
Alternating Current
Which wire is green and yellow?
Earth Wire
If an appliance has two layers of plastic we say it is...
Double Insulated