Question detail
A student is answering an AQA Electricity question about Direct and alternating potential difference. Which choice best applies mains electricity alternating?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Domestic uses and safety
Question
- 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.
Answer
The correct answer is: Use explain that mains electricity is an alternating-current supply in the specific circuit or quantity named in the question.
Explanation
Use explain that mains electricity is an alternating-current supply in the specific circuit or quantity named in the question. This is correct because the objective is about explain that mains electricity is an alternating-current supply, not a loose recall of Domestic uses and safety.
Common mistake
Direct and alternating potential difference common mistake 1
Giving a vague answer instead of directly addressing: Explain that mains electricity is an alternating-current supply..
Answer by clearly explaining how to explain that mains electricity is an alternating-current supply..
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