In a correctly wired metal-cased appliance, which part is connected directly to the earth wire?
The live terminal of the heating element.
The metal case on the outside of the appliance.
The neutral terminal of the heating element.
The live terminal on the supply side of the fuse.
81 exam-style questions on Edexcel GCSE Physics 10.4 Mains electricity, covering 10.4.1 Direct and alternating current, 10.4.2 Live, neutral and earth wires; safety, 10.4.3 Mains wire potential differences and dangers, and 10.4.4 Power ratings and energy use. Each one has a worked solution and a mark scheme showing where the marks go.