Wiring and stuff

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A fuse is a thin piece of wire that...
allows a current to flow through it
1 of 18
Above a certain value, the fuse...
overheats and melts
2 of 18
The wire burning is safer as...
it doesn't burn the whole appliance
3 of 18
It prevents more current to...
flow through the appliance
4 of 18
Plugs, sockets and cables and appliances are made of...
hard-wearing electrical insulators
5 of 18
Sockets are made out of...
stiff plastic materials with wires inside
6 of 18
The longest pin of a three pin plug is designed so that it will make contact with the...
earth wire of a wall socket circuit
7 of 18
This is so that when you plug in an appliance with a metal casing to a wall socket...
the case is automatically earthed
8 of 18
Plugs have cases made out of...
stiff plastic
9 of 18
The pins are made of brass because...
it is a good conductor and doesn't rust/oxidise
10 of 18
The inside of the case is shaped so that the wires and pins...
cannot touch each other when the plug is sealed
11 of 18
The fuse placed between the live pin and the live wire will...
cut the live wire off if there is too much current passing through it
12 of 18
Cables used for mains appliances consist of two or three...
insulated copper wires surrounded by an outer layer of rubber or flexible plastic material
13 of 18
Copper is a good...
conductor
14 of 18
Plastic is a good insulator and...
prevents anyone touching the cable (prevents electric shocks)
15 of 18
Two-core cables are used for...
appliances which have plastic cases
16 of 18
The LIVE wire is connected to the...
live pin
17 of 18
The NEUTRAL wire is connected to the...
neutral pin
18 of 18

Other cards in this set

Card 2

Front

overheats and melts

Back

Above a certain value, the fuse...

Card 3

Front

it doesn't burn the whole appliance

Back

Preview of the back of card 3

Card 4

Front

flow through the appliance

Back

Preview of the back of card 4

Card 5

Front

hard-wearing electrical insulators

Back

Preview of the back of card 5
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