An electrical appliance connected to the mains supply is protected by a 13 A fuse. In which wire of the mains plug should the fuse be placed, and how does it protect the appliance when the current exceeds 13 A?
In the live wire, and it melts to disconnect the circuit.
In the live wire, and it limits the current to exactly 13 A13\text{ A}13 A.
In the neutral wire, and it melts to disconnect the circuit.
In the neutral wire, and it limits the current to exactly 13 A13\text{ A}13 A.
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.