Mains Electricity

Question 1

What is the brown wire called plus lil facts

Answer 1

Live wire
Carries alternating p.d from the supply (230v)

Question 2

Blue wire ?

Answer 2

Neutral wire
Cause completes the circuit
P.d =0v compared to live wire

Question 3

Green yellow wire

Answer 3

Earth wire .
A safety wire to stop the appliances from becoming live

Question 4

Thé live can be dangerous

Answer 4

If touched

Question 5

P.d of earth

Answer 5

0v

Question 6

What would happen if someone touched a live wire

Answer 6

A current would flow through them into the earth and they’d be electrocuted

Question 7

Why can appliances with metal cases be dangerous

Answer 7

Because live wire comes loose and touches the metal case and then case becomes live (230v)
Shoving someone

Question 8

What is the metal case attatched to

Answer 8

The earth wire connected to the ground with a metal rod.

Question 9

What will happen if live wire touches casing with the earth wire
(Fuse)

Answer 9

So if case becomes live a huge amount current flows to earth . The fuse melts and shuts the current off preventing electric shocks

Question 10

Pd of humans

Answer 10

0v

Question 11

What causes electricity to flow throw one thing to another

Answer 11

Difference in voltage

Question 12

What does the green wire provide

Answer 12

An alternative pathway for current to flow away