This exam focus covers Exam Focus within Mains Electricity & Safety for GCSE Physics. Revise Mains Electricity & Safety in Electricity for GCSE Physics with 18 exam-style questions and 30 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 14 of 16 in this topic. Treat this as a marking guide for what examiners are looking for, not just a fact list.
🎯 Exam Focus
Exam Favourite
Examined in Edexcel 1PH0/2 (Paper 2). Context-based: household appliance scenarios for fuse selection and safety explanation. Mains electricity and safety is examined in virtually every GCSE Physics paper. The three-pin plug, wire functions, and fuse selection are classic multi-mark questions.
What examiners love to ask:
- State the colour and function of each wire in a plug
- Explain how the earth wire and fuse protect a user
- Calculate the correct fuse rating for an appliance (I = P/V)
- Explain why the fuse must be on the live wire, not neutral
- State the UK mains voltage and frequency
- Explain what double insulation is and why no earth is needed
- Compare fuses and circuit breakers
Practice questions for Mains Electricity & Safety
What does AC stand for, and how does it differ from DC?
Explain how a fuse protects an electrical circuit from damage.