Where Does the Extra Energy in a Capacitor Come From?

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When a capacitor is connected to a battery and the distance between its plates is increased, the energy between the plates decreases by E, while the battery gains an additional energy of 2E. The extra energy, E, is attributed to the work done by an external force during the process of pulling the plates apart. This indicates that energy is conserved, as the work input results in the observed energy changes. The discussion emphasizes the relationship between work, energy, and the behavior of capacitors in electric circuits. Understanding this principle is crucial for grasping energy dynamics in capacitive systems.
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A capacitor is connected to a battery. If a person pulls the plate to increase the distance by 2d the decrease in energy between the plates is E. We observe energy gained by battery is 2E. From where does extra energy E come from.?
 
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Ajay.makhecha said:
From where does extra energy E come from.?
Where do you think it came from. Can you think of any quantity that is equal to the change in energy?
 
i think extra E came because of work done by external force
 

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