Extra TopicsStudy Notes

The national grid — power station to home

Part of National Grid & Transformers · GCSE GCSE Physics revision

This study notes covers The national grid — power station to home within National Grid & Transformers for GCSE Physics. Revise National Grid & Transformers in Extra Topics for GCSE Physics with 13 exam-style questions and 12 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 2 of 13 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 13

Practice

13 questions

Recall

12 flashcards

GCSE Physics revision: national grid from power station, step-up transformer, pylons to homes

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Figure: The national grid — power station to home

Keep building this topic

Read this section alongside the surrounding pages in National Grid & Transformers. That gives you the full topic sequence instead of a single isolated revision point.

The Cleverest Solution in Engineering History How the National Grid Works How Transformers Work The Transformer Equations

Practice Questions for National Grid & Transformers

What is the function of a step-up transformer in the National Grid?

A. To increase current and decrease voltage for transmission
B. To increase voltage and decrease current for transmission
C. To convert AC to DC for transmission
D. To store electrical energy during low-demand periods

1 markfoundation

Explain why electricity is transmitted at high voltage and low current through the National Grid power cables.

3 marksstandard

Quick Recall Flashcards

What voltage do homes receive?

230 V

How does a transformer work?

AC in primary creates changing magnetic field → iron core transfers field to secondary → changing field induces voltage in secondary (electromagnetic induction)

13 questions on National Grid & Transformers — practise free

Instant marking, adaptive difficulty, and 12 spaced repetition flashcards. Free until your GCSEs.

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The Cleverest Solution in Engineering History

How the National Grid Works