Physics-P5-(MAINS ELECTRICITY) Flashcards

1
Q

What is the mains electricity in the Uk (in volts)

A

230V

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2
Q

How many wires are in the mains cable

A

3

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3
Q

What are the wires called

A

Earth, neutral, live

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4
Q

What do they do

A
  • the earth (yellow and green)- is the safe wire that carries no current
  • the neutral wire (blue) carries the current AWAY from the appliance
  • the live wire (brown) carries the current TO the appliance
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5
Q

What are the dangers of mains electricity

A

-touching a live wire - large potential difference flows through the body
- damaged cables
- a connection between the earth and the live wire

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