Physics (Combined Science) · GCSE · AQA · AQA GCSE Combined Science: Trilogy (8464) — Physics — Foundation · Specification point · 6.2.3.1 · Electricity · Domestic uses and safety
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6.2.3.1 Direct and alternating potential difference
| Content | Key opportunities for skills development |
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Mains electricity is an ac supply. In the United Kingdom the domestic electricity supply has a frequency of 50 Hz and is about 230 V. Students should be able to explain the difference between direct and alternating potential difference. |