Kramizo
Log inSign up free
Home › WJEC GCSE Physics › Mains Electricity
WJEC · GCSE · Physics

Mains Electricity
Practice Questions

40 WJEC GCSE Physics questions on Mains Electricity, each with instant feedback and a full examiner-style mark scheme.

⚡ Start Quiz on Mains Electricity →📖 Read Revision Notes
✨ Revision guide includes key terms, worked examples and exam technique for Mains Electricity.

Try 2 sample questions on Mains Electricity

Question 1 · 1 mark · Difficulty 1/3

An appliance is marked as double insulated. Which wire does it not need?

  1. The live wire
  2. The earth wire
  3. The fuse
  4. The neutral wire
Show answer & explanation
✓ Answer: B — The earth wire
Award 1 mark. A double-insulated appliance has a plastic case or extra insulation, so no metal part a person could touch can become live. It still needs live and neutral wires to complete the circuit, and it is still protected by a fuse.
Question 2 · 1 mark · Difficulty 1/3

What colour is the insulation on the earth wire in a UK three-pin plug?

  1. Brown
  2. Blue
  3. Green and yellow stripes
  4. Black
Show answer & explanation
✓ Answer: C — Green and yellow stripes
Award 1 mark. The striped pattern can be recognised even by people who cannot tell some colours apart. Brown is the live wire and blue the neutral, and black is not used in modern UK plugs.
⚡ Start a Quiz on Mains Electricity →
20 questions · 25 min · free

WJEC GCSE Physics: Mains Electricity FAQ

Is Kramizo free for WJEC GCSE students preparing for Physics?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Mains Electricity practice with other Physics topics or even switch to a totally different WJEC subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Mains Electricity questions aligned to the official WJEC GCSE Physics syllabus?
Every question is written against the published WJEC GCSE Physics specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real WJEC paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from WJEC.
How is Mains Electricity typically tested on WJEC GCSE Physics papers?
Mains Electricity appears across multiple question types on real WJEC GCSE Physics papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

Lock in Mains Electricity before exam day.

Start practising in 30 seconds — no card required.

⚡ Start Quiz Free →