A portable stereo should have a 3 A fuse fitted, but a 13 A fuse has been fitted by mistake. The stereo is not faulty. The stereo is switched on. What happens?
The fuse blows immediately.
The fuse does not blow, but the stereo does not turn on.
The stereo draws a very large current and its internal wiring melts.
The stereo works normally.
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.