An electrical appliance with a metal outer casing has a damaged internal connection. The live wire has come loose and is touching the metal casing, while the earth wire is disconnected. If a person touches the metal casing, what is the greatest hazard?
a fire
a fuse will blow
an electric shock
the appliance will 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.