Exam-style question
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A student is answering an AQA Electricity question about Direct and alternating potential difference. Which choice best applies mains electricity alternating?.
- A.Use explain that mains electricity is an alternating-current supply in the specific circuit or quantity named in the question.
- B.Assume mains electricity alternating means the same thing in every electricity context.
- C.Ignore the circuit arrangement and quote the topic title only.
- D.Swap the stated relationship for its opposite when the numbers look unfamiliar.
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