Combined Science GCSE
fuse
What fuse means in Combined Science GCSE, as defined for AQA.
Definitions of fuse
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Reference: AQA
Melts when the current exceeds its rating because the heating effect of the current raises the temperature of the fuse wire, breaking the live connection.
A device that melts when the current is too large, protecting cables and equipment by disconnecting the live supply.
Topics that use fuse
- Mains electricity (AQA GCSE)
Related terms
- colour code
- double insulation
- Earth wire
- Electrical safety
- Function and placement of switches
- Fuses and circuit breakers
- Insulation
- Isolation from the supply
Using fuse in the exam
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