Exam-style question
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What happens to the capacitance of a parallel plate capacitor if the distance between the plates is doubled? Scenario focus: inverse-square reasoning in a distinct A-Level Physics fields context; identify the field quantity, source, direction, and unit before selecting the answer.
- A.Capacitance doubles
- B.Capacitance halves
- C.Capacitance remains the same
- D.Capacitance quadruples
Model answer
What a good answer should say
- Capacitance halves
Explanation
Why this works
The correct answer is Capacitance halves. This is correct for Capacitance because the stem is testing inverse-square reasoning; 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.