A hair dryer is connected to the mains supply.
The plug of the hair dryer contains a fuse. The fuse is connected in the live wire.
Describe what happens to the fuse if the current in it becomes too large.
Explain why the fuse is connected in the live wire and not in the neutral wire.
Some homes use circuit breakers instead of fuses.
Give one advantage of using a circuit breaker instead of a fuse.
81 exam-style questions on Edexcel GCSE Physics 10.4 Mains electricity, covering 10.4.1 Direct and alternating current, 10.4.2 Live, neutral and earth wires; safety, 10.4.3 Mains wire potential differences and dangers, and 10.4.4 Power ratings and energy use. Each one has a worked solution and a mark scheme showing where the marks go.