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What happens to the stored electric potential energy and the electric field between the plates of a charged isolated parallel plate capacitor when the plate separation is increased? |
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Answer» Solution :When the plate separation is increased, the charge stored in the capacitor remains same and the capacitancedecreases. Therefore, potential DIFFERENCE across the plates INCREASES. `therefore` The stored electric potential energy will increase by `(1)/(2)QDeltaV`. Hence, electric field between the plates is: `E=(Q)/(in_(0)A)` charge(Q) remains CONSTANT. The electric field between the plates remains constant in strength but fills up more volume on increasing the separation. |
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