(II) A parallel-plate capacitor has fixed charges +Q and –Q.The separation of the plates is then halved. (a) By whatfactor does the energy stored in the electric field change?(b) How much work must be done to reduce the plate sepa-ration from d to d? The area of each plate is A.

Given:A parallel plate capacitor has fixed charges +Q and -Q. The seperation of the plates is then…

Answered: (II) A parallel-plate capacitor has…

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter8: Capacitance

Section: Chapter Questions

Problem 70AP: A parallel-plate capacitor with capacitance 5.0F is charged with a 12.0-V battery, after which the...

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A parallel-plate capacitor with capacitance 5.0F is charged with a 12.0-V battery, after which the battery is disconnected. Determine the minimum work required to increase the separation between the plates by a factor of 3.
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Would electric potential energy be meaningful if the electric field were not conservative?
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(II) A parallel-plate capacitor has fixed charges +Q and –Q. The separation of the plates is then halved. (a) By what factor does the energy stored in the electric field change? (b) How much work must be done to reduce the plate sepa- ration from d to d? The area of each plate is A.