A parallel-plate vacuum capacitor has 7.22 J of energy stored in it. The separation between the plates is 2.30 mm. Part A If the separation is decreased to 1.45 mm, what is the energy now stored if the capacitor was disconnected from the potential source before the separation of the plates was changed? Express your answer in joules. U = 4.55 J Submit Previous Answers Correct INEED HELP ABOUT PART B Part B If the separation is decreased to 1.45 mm, what is the energy now stored if the capacitor remained connected to the potential source while the separation of the plates was changed? Express your answer in joules. ? U = 14.44 J Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining

A parallel-plate vacuum capacitor has 7.22 J of energy stored in it. The separation between the plates is 2.30 mm. Part A If the separation is decreased to 1.45 mm, what is the energy now stored if the capacitor was disconnected from the potential source before the separation of the plates was changed? Express your answer in joules. U = 4.55 J Submit Previous Answers Correct INEED HELP ABOUT PART B Part B If the separation is decreased to 1.45 mm, what is the energy now stored if the capacitor remained connected to the potential source while the separation of the plates was changed? Express your answer in joules. ? U = 14.44 J Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Combination of Capacitors

The connection of capacitors can be established in a circuit in two ways.

Question

100%

A parallel-plate vacuum capacitor has 7.22 J of
energy stored in it. The separation between the
plates is 2.30 mm.
Part A
If the separation is decreased to 1.45 mm, what is the energy now stored if the capacitor was
disconnected from the potential source before the separation of the plates was changed?
Express your answer in joules.
U = 4.55 J
Submit
Previous Answers
Correct
I NEED HELP ABOUT PART B
Part B
If the separation is decreased to 1.45 mm, what is the energy now stored if the capacitor
remained connected to the potential source while the separation of the plates was changed?
Express your answer in joules.
U = 14.44
J
Submit
Previous Answers Request Answer
X Incorrect; Try Again; 5 attempts remaining

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