An electric fan should have a 3 A fuse fitted in its plug, but a 13 A fuse has been fitted by mistake. The fan is not faulty. The fan is now switched on. What happens?
The fuse blows.
The fuse does not blow but the fan does not operate.
The fan works normally.
The fan draws too much current, causing the supply cables to overheat.
135 exam-style questions on CIE IGCSE Physics Electrical safety, covering Electrical safety. Each one has a worked solution and a mark scheme showing where the marks go.