A mains-operated television is a double-insulated appliance.
Which statement about this television is correct?
It must be connected to an earth wire for safety.
The outer casing is an insulator, so it cannot become live and no earth wire is needed.
It does not require a fuse because there is no danger of short circuits.
The television does not need a neutral wire to complete the circuit.
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.