A Parallel Plate Capacitor with an Air Dielectric Is Attached

question 34

Multiple Choice

A parallel plate capacitor with an air dielectric 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 by 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

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