Why Does a Capacitor's Charge Remain the Same When Voltage is Removed?

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When the voltage supply is removed from a parallel plate capacitor, the charge remains unchanged because it has no path to dissipate. The dielectric prevents the charge from moving between the plates, maintaining the net charge at zero. The term "energized" is more accurate when describing a capacitor connected to an external voltage source. This highlights the capacitor's ability to store charge until a circuit allows it to discharge. Understanding these principles is essential for grasping capacitor behavior in electrical circuits.
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When voltage supply is removed from a parallel plate capacitor, why does the charge remain as before?
 
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Because the charge has nowhere to go. It can't get through the dielectric, and there's no other path to the other plate.
 
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Rohan R T said:
why does the charge remain as before?

to be a little more specific
The charge on a capacitor never changes, that is, the net charge always = 0

You should get used to using the more correct term of the capacitor being energised
when an external voltage source is applied across the capacitor terminals

Dave
 

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