What this practice covers
These questions are drawn from past CIE 0625 Physics papers and filtered to electrical safety. You answer, you find out immediately whether you were right, and you get the reasoning for the correct option and for each distractor. Wrong answers go to a mistakes locker so you can come back to exactly those.
Practice is free. You need an account only so your progress and your mistakes are still there next time.
Start practising practice questions →
What examiners see students get wrong here
These are the errors that cost marks on electrical safety, taken from our own topic notes. Read them before you practise and you will recognise the traps in the questions.
- Putting the fuse or the switch in the neutral wire.
- Saying the earth wire carries current in normal operation.
- Explaining earthing without mentioning that the large current blows the fuse.
- Choosing a fuse rated below the normal operating current.
- Choosing a 13 A fuse for everything regardless of the calculation.
- Saying a double insulated appliance is safe because it has an earth wire.
- Saying a circuit breaker works by melting.
- Mixing up the wire colours; brown is live and blue is neutral.
Revise it first
If any of the above is unfamiliar, work through the notes before practising: Electrical safety revision notes.