1. A 20 µF capacitor has a potential difference of 9.0 V applied across its plates. If the potential difference across its plates is increased to 12.0 V, how much ADDITIONAL energy does the capacitor store? 2. Each plate of a parallel-plate air-filled capacitor has an area of 0.0020 m2, and the separation of the plates is 0.020 mm. An electric field of 3.9x106 V/m is present between the plates. What is the surface charge density on the plates?

1. A 20 µF capacitor has a potential difference of 9.0 V applied across its plates. If the potential difference across its plates is increased to 12.0 V, how much ADDITIONAL energy does the capacitor store? 2. Each plate of a parallel-plate air-filled capacitor has an area of 0.0020 m2, and the separation of the plates is 0.020 mm. An electric field of 3.9x106 V/m is present between the plates. What is the surface charge density on the plates?

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 35P: a parallel-plate capacitor with area 0.200 m2 and plate separation of 3.00 mm is connected to a...

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