A toaster with a metal case is connected to the mains supply. The circuit includes a fuse.
Draw the electrical symbol for a fuse.
The metal case of the toaster is earthed. A fault occurs and a live wire touches the metal case. Explain how earthing the metal case protects the user.
The control circuit for the toaster includes a transformer. Its input voltage is 230 V230\text{ V}230 V. There are 115011501150 turns on the input coil and 606060 turns on the output coil.
Calculate the output voltage of the transformer.
output voltage = ___________ V\text{V}V
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.