Electricty In The Home

Question 1

What is current doing in Ac supplies?

Answer 1

Constantly changing direction.

Question 2

What is the Uk mains supply around?

Answer 2

230V

Question 3

what is direct current?

Answer 3

Current that always flows in the same direction.

Question 4

what do wires usually have a cord of and why?

Answer 4

copper as it is very conductive when pure but very malleable.

Question 5

what colour is the neutral wire and what does it do?

Answer 5

blue- completes the circuit and carries away current, electricity usually flows out through here. It’s around 0 volts

Question 6

What colour is the live wire and what does it do?

Answer 6

Brown, it provides alternating potential difference from the mains supply. 230v

Question 7

What colour is the earth wire and what does it do?

Answer 7

Greens and yellow, it is for protecting the wiring, and for safety- it stops the appliance becoming live. Also at 0v

Question 8

What is the frequency of the ac mains supply?

Answer 8

50Hz

Question 9

What happens if the earth wire is carrying current?

Answer 9

There is a fault