Physics GCSE
fault current
What fault current means in Physics GCSE, as defined for AQA.
Definition of fault current
Check what you remember
Read the wording for your board, then hide it and explain fault current in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
A very large current that passes through the live wire and the earth wire when the live wire works loose and touches the metal case.
Topics that use fault current
- Mains electricity (AQA GCSE)
Related terms
- conductors and insulators
- double insulation
- earth wire
- equal current
- live neutral earth
- live to earth connection
- low resistance path
- metal case
Using fault current in the exam
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