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Electrical safety — OCR GCSE Physics A J249

Home
Physics
OCR GCSE Physics A
Global challenges
Powering Earth
Electrical safety

OCR GCSE Physics A · J249

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

1
Electrical safety
4 key terms

Practise with past papers Key terms & definitions

Previous subtopicMains wires Next topic: Beyond EarthRed-shift