A person cuts through a mains cable with a metal tool. The cable is connected to a switched-on wall socket. The blade of the tool touches the live wire. The person is standing on a concrete floor.
Explain why a large current flows through the person.
Give one reason why cutting through the neutral wire would be less dangerous than cutting through the live wire.
40 exam-style questions on AQA GCSE Physics 2.3 Domestic uses and safety, covering 2.3.1 Direct and alternating potential difference and 2.3.2 Mains electricity. Each one has a worked solution and a mark scheme showing where the marks go.