Exam-style question
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What happens to the capacitance of a parallel plate capacitor if the separation between the plates is doubled?.
- 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 capacitance of a parallel plate capacitor is inversely proportional to the separation between the plates. Doubling the separation halves the capacitance.
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