In a mains electrical circuit, where must a switch and a fuse be connected to ensure that an appliance is isolated from the high voltage supply when the circuit is broken?
the earth wire only
the live wire only
the neutral wire only
the neutral wire and the earth wire
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.