Physics GCSE
Alternating Current (AC)
What Alternating Current (AC) means in Physics GCSE, as defined for AQA.
Definition of Alternating Current (AC)
Check what you remember
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Reference: AQA
An electric current that repeatedly reverses its direction of flow. The UK mains supply is AC.
Topics that use Alternating Current (AC)
- Direct and alternating potential difference (AQA GCSE)
Related terms
- 230 V supply
- alternating current
- alternating potential difference
- earth wire
- Live wire
- neutral wire
- oscilloscope trace
- Direct Current (DC)
Using Alternating Current (AC) in the exam
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