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Combined Science
AQA GCSE Combined Science Trilogy
Electricity
Domestic Electricity and Safety
Direct and Alternating Potential Difference
AQA GCSE Combined Science Trilogy · 8464
Direct and Alternating Potential Difference
What you need to know
Describe mains electricity as an alternating current (ac) supply.
Recall that the domestic electricity supply in the United Kingdom has a frequency of 50 Hz and a potential difference of approximately 230 V.
Explain the fundamental differences between direct and alternating potential difference.
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1
Direct and Alternating Potential Difference
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Previous topic: Series and Parallel Circuits
Series and Parallel Circuits
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Mains Electricity and Wiring
