An electric toaster has a metal body. The power cable includes an earth wire which is connected to this metal body. Which hazard does this connection specifically protect the user against?
The plug's fuse melting due to a minor current surge.
The toaster's heating elements drawing too much current and overheating.
The metal body of the toaster becoming live and presenting a shock hazard.
The cable insulation wearing down and exposing the internal wires.
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.