Two identical parallel-plate capacitors, each with capaci- 'tance C, are charged to potential difference AV and con- nected in parallel. Then the plate separation in one of the capacitors is doubled. (a) Find the total energy of the ¡system of two capacitors before the plate separation is doubled. (b) Find the potential difference across each capacitor after the plate separation is doubled. (c) Find the total energy of the system after the plate separation is dou- bled. (d) Reconcile the difference in the answers to parts (a) and (c) with the law of conservation of energy.

Two identical parallel-plate capacitors, each with capaci- 'tance C, are charged to potential difference AV and con- nected in parallel. Then the plate separation in one of the capacitors is doubled. (a) Find the total energy of the ¡system of two capacitors before the plate separation is doubled. (b) Find the potential difference across each capacitor after the plate separation is doubled. (c) Find the total energy of the system after the plate separation is dou- bled. (d) Reconcile the difference in the answers to parts (a) and (c) with the law of conservation of energy.

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter16: Electrical Energy And Capacitance

Section: Chapter Questions

Problem 6CQ: An air-filled parallel-plate capacitor with capacitance C0 stores charge Q on plates separated by...

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