ElectricityStudy Notes

Three-pin plug — wiring and safety

Part of Mains Electricity & Safety · GCSE GCSE Physics revision

This study notes covers Three-pin plug — wiring and safety within Mains Electricity & Safety for GCSE Physics. Revise Mains Electricity & Safety in Electricity for GCSE Physics with 13 exam-style questions and 30 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 2 of 18 in this topic. Use this study notes to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 2 of 18

Practice

13 questions

Recall

30 flashcards

GCSE Physics revision: three-pin plug showing live (brown), neutral (blue) and earth wires with fuse

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Figure: Three-pin plug — wiring and safety

Keep building this topic

Read this section alongside the surrounding pages in Mains Electricity & Safety. That gives you the full topic sequence instead of a single isolated revision point.

Why the Earth Wire Saves Lives UK Mains Supply — Key Facts Three-Pin Plug Wiring The Three Wires — What They Do

Practice Questions for Mains Electricity & Safety

What does AC stand for, and how does it differ from DC?

A. Alternating current; it flows at a higher voltage than DC
B. Alternating current; it repeatedly changes direction, whereas DC flows in one direction only
C. Adapted current; it is produced only by batteries
D. Alternating current; it flows at a constant rate, whereas DC changes direction

1 markfoundation

Explain how a fuse protects an electrical circuit from damage.

2 marksstandard

Quick Recall Flashcards

What is DC?

Direct Current — current flows in one direction only (batteries provide DC)

What is AC?

Alternating Current — current direction reverses constantly (50 times/second in UK)

13 questions on Mains Electricity & Safety — practise free

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Why the Earth Wire Saves Lives

UK Mains Supply — Key Facts