Skip to content
Toggle Sidebar
Home
Subjects
Past Papers
Key Terms
Settings
My Courses
Select your courses
Physics A
Global challenges
Powering Earth
Electrical safety
Electrical safety
What You Need to Know
Explain why a live wire may be dangerous even when a switch is open.
Explain the dangers of connecting the live wire to earth.
Understand the protection offered by insulation.
Revision Notes
Sign up to access these revision notes
Create an account to unlock revision notes, key terms, and exam tips.
Sign up
Log in
Practise with Past Papers
Key Terms & Definitions
Previous Subtopic
Mains wires
Next Topic: Beyond Earth
Red-shift
