An Air-Filled Parallel Plate Capacitor Is Attached to a Voltage

An air-filled parallel plate capacitor is attached to a voltage source and charged. The voltage source is removed, and then the plates are separated to double their previous distance. What happens to the energy stored in the capacitor when the plates are separated?

A) It doubles.
B) It quadruples.
C) It halves.
D) It is diminished by a factor of 4.
E) It stays the same.

Correct Answer:

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