Skip to content

Loading…

Home
Subjects
Past papers
Key terms
Pricing

My courses

Select your courses

Loading…

Subjects

History
Geography
Biology
Chemistry
Physics
Combined Science
Mathematics
Classics
Business
Computer Science
Religious Studies
Statistics
Physical Education
Design and Technology
Food Preparation and Nutrition

Resources

Browse courses
Past papers
Key terms & definitions
Pricing

About

Sign up
Log in
Privacy Policy
Terms of Service

© 2026 GradeGen

Not affiliated with any exam board.

Home
Combined Science
Key terms
Earth potential

GCSE Combined Science · key term

Earth potential

Definition

The reference electrical potential assigned to the Earth: 0 V.

Used by AQA

How each exam board covers it

AQA GCSE Combined Science Trilogy · 8464

Specification 6.2.3.2 · Paper 5, Paper 6

For mains safety, earth potential is taken as 0 V. The earth wire is at 0 V, and the neutral wire is at, or close to, 0 V.
Revise: Mains Electricity and Wiring

AQA Combined Science Trilogy past papers

Related key terms

Earth wire
Electric shock
Live wire
Neutral wire
Three-core cable

Revise Combined Science with GradeGen

Create a free account to read GCSE Combined Science revision notes for your exam board and track your progress.

Sign Up to Start Revising Log In

Earth potential — AQA GCSE Combined Science Trilogy Definition | GradeGen