A parallel-plate vacuum capacitor has 6.32 J of energy stored in it. The separation between the plates is 4.00 mm. Part A If the separation is decreased to 1.90 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. Part B If the separation is decreased to 1.90 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.

A parallel-plate vacuum capacitor has 6.32 J of energy stored in it. The separation between the plates is 4.00 mm. Part A If the separation is decreased to 1.90 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. Part B If the separation is decreased to 1.90 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.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter20: Electric Potential And Capacitance

Section: Chapter Questions

Problem 1OQ: A parallel-plate capacitor is charged and then is disconnected from the battery. By what factor does...

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