An air‑filled parallel‑plate capacitor is connected to a battery with a voltage V. The plates are pulled apart, tripling the gap width, while they remain connected to the battery. By what factor P1 does the potential energy of the capacitor change? P1= If the capacitor is first removed from the battery, by what factor P2 does the stored potential energy of the capacitor change when the gap width is tripled? P2=

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter27: Capacitors And Batteries
Section: Chapter Questions
Problem 24PQ: An arrangement of capacitors is shown in Figure P27.23. a. If C = 9.70 105 F, what is the...
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An air‑filled parallel‑plate capacitor is connected to a battery with a voltage V.

The plates are pulled apart, tripling the gap width, while they remain connected to the battery. By what factor P1 does the potential energy of the capacitor change?

P1=
 
If the capacitor is first removed from the battery, by what factor P2 does the stored potential energy of the capacitor change when the gap width is tripled?

P2=

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