Domestic electricity and safety - Eduqas

1

What type of current does an electrical cell produce?

2

What is the mains voltage value in this country?

3

What is the frequency of mains electricity?

4

What colour is the live wire?

5

Which wire is connected to the fuse?

6

Which is the correct description of the earth wire?

7

What is the purpose of the earth wire?

8

What is the purpose of a fuse?

9

A microwave has a power rating of 900 W. Calculate what size fuse should be used in the plug if the mains voltage is 230 V.

10

A TV has a power rating of 750 W and the plug connected to the 230 V mains has a 3 A fuse. Once the TV is turned on, the fuse melts, why has this happened?