APFIVE Capacitor Stored Energy and Plate Separation
A parallel-plate capacitor stores 5.0 μC of charge when connected to a 12 V battery. The plate separation is then doubled while the capacitor remains connected to the battery. Which of the following describes the change in energy stored by the capacitor?
A
Decreases by a factor of 4
B
Remains the same
C
Decreases by a factor of 2
D
Increases by a factor of 2
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