Exam-style question
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What happens to the electric potential energy when a positive charge moves away from another positive charge? Scenario focus: transformers in a distinct A-Level Physics fields context; identify the field quantity, source, direction, and unit before selecting the answer.
- A.It increases.
- B.It decreases.
- C.It remains constant.
- D.It becomes negative.
Model answer
What a good answer should say
- It decreases.
Explanation
Why this works
The correct answer is It decreases.. This is correct for Electric fields because the stem is testing transformers; the chosen option keeps the field quantity, source interaction, direction, and unit consistent.
The alternatives are weaker because they mix gravitational, electric, magnetic, orbital, or transformer ideas, or they attach the right number to the wrong physical meaning.
Common mistake
No common mistake is linked to this question yet.