Question detail
Which answer would earn credit when explain that step-down transformers decrease potential difference to a lower value for domestic use is assessed?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Energy transfers
Question
- A. Check the named quantity, component or circuit relationship before choosing the response.
- B. Write every electricity equation even when the question asks for a description.
- C. Use the same rule for series and parallel circuits without checking the arrangement.
- D. Describe energy transfer when the question asks for charge or current only.
Answer
The correct answer is: Check the named quantity, component or circuit relationship before choosing the response.
Explanation
Check the named quantity, component or circuit relationship before choosing the response. This avoids confusing potential difference, current and resistance while staying aligned to explain that step-down transformers decrease potential difference to a lower value for domestic use.
Common mistake
The National Grid common mistake 1
Giving a vague answer instead of directly addressing: Explain that step-down transformers decrease potential difference to a lower value for domestic use..
Answer by clearly explaining how to explain that step-down transformers decrease potential difference to a lower value for domestic use..
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