A parallel-plate vacuum capacitor has 6.06 J ofenergy stored in it. The separation between theplates is 2.50 mm. If the separation is decreasedto 1.30 mm,Part Awhat is the energy now stored if the capacitor was disconnected from the potential source before theseparation of the plates was changed?U =跖ΜΕ ΑΣΦSubmitRequest AnswerPart B圖?JWhat is the energy now stored if the capacitor remained connected to the potential source while theseparation of the plates was changed?U =跖ΜΕ ΑΣΦSubmitRequest Answer© = ?J

Answered: Image /qna-images/answer/7d3d629a-0108-4ee0-b73f-dc28eae6e098.jpg

Answered: A parallel-plate vacuum capacitor has…

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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A parallel plate capacitor is filled with air and has a capacitance of 25 Mf. A non-conductive liquid with dielectric constant 6.50 is deposited in the space between the plates and fills a fraction f of said spacea) Find the new capacitance as a function of fb) What would you expect the new capacitance to be if f = 0? Does it match the value I calculate in the first part?c) What would you expect the new capacitance to be if f = 1? Does it match the value I calculate in the first part?
с A slab of copper of thickness b is thrust into a parallel-plate capacitor of plate area A and plate separation d, as shown in the figure above; the slab is exactly halfway between the plates. NOTE: Express your answers in terms of the given variables using eo and q when necessary. (a) What is the capacitance after the slab is introduced? = W b (b) If a charge q is maintained on the plates, what is the ratio of the stored energy before to that after the slab is inserted? d U₁ Uf (c) How much work is done on the slab as it is inserted? = = (d) Is the slab sucked in or must it be pushed in? [Choose one ▾
n Increasing the separation of the two charged parallel plates of a capacitor, which are disconnected from a battery, will produce what effect on the capacitor? O increase charge decrease charge increase capacitance O decrease capacitance
Please do part a
P1. A plane parallel capacitor, whose plates are each of area A and separation d, is charged with a battery of EMF V. How much work is done if a large metallic slab with thickness d/3 is inserted inside the capacitor? The slab is parallel with the plates. The capacitor is connected to the battery while we move the metallic slab, so the potential of the capacitor is fixed. d metal d/3 A
A 12.5 μF capacitor is connected to a power supply that keeps a constant potential difference of 26.0 V across the plates. A piece of material having a dielectric constant of 3.90 is placed between the plates, completely filling the space between them. a) How much energy is stored in the capacitor before the dielectric is inserted? b) How much energy is stored in the capacitor after the dielectric is inserted? c) By how much did the energy change during the insertion?
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C₁ C2 Two parallel flat plate capacitors, C_1 and C 2 are connected in series. Both capacitors have an area of 20.0cm^2 and a separation distance between plates of 2mm and the same dielectric material is placed inside (k=3.9). which occupies half the volume as shown in the image. What is the equivalent capacitance of the capacitor array?
Item 2 A dielectric-filled parallel-plate capacitor has plate area A = 30.0 cm² plate separation d = 10.0 mm and dielectric constant k = 2.00. The capacitor is connected to a battery that creates a constant voltage V = 12.5 V. Throughout the problem, use 0 = 8.85×10-12 C²/N·m². Part A Find the energy U₁ of the dielectric-filled capacitor. Express your answer numerically in joules. ► View Available Hint(s) U₁ = Submit Part B U2 = VE ΑΣΦ Submit ? 17 ΑΣΦ J The dielectric plate is now slowly pulled out of the capacitor, which remains connected to the battery. Find the energy U₂ of the capacitor at the moment when the capacitor is half- filled with the dielectric. Express your answer numerically in joules. ► View Available Hint(s) 2 of 15 J Review

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