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A parallel-plate vacuum capacitor has 7.22J of energy stored in it. The separation between the plates...

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Physics

A parallel-plate vacuum capacitor has 7.22J of energy stored init. The separation between the plates is 2.70mm . If the separationis decreased to 1.85mm ,

a) what is the energy now stored if the capacitor wasdisconnected from the potential source before the separation of theplates was changed?

b)

What is the energy now stored if the capacitor remainedconnected to the potential source while the separation of theplates was changed?

Answer & Explanation Solved by verified expert
3.9 Ratings (529 Votes)
Energy stored in capacitor U 722 J U 12CV2 C eoAd CdeoAconstant C2d2C1d1 C2C1d1d2 The separation between the plates is 270mm The separation is decreased to    See Answer
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