College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
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A dielectric-filled parallel-plate capacitor has plate area AA = 30.0 cm2cm2 , plate separation dd = 9.00 mmmm and dielectric constant kk = 3.00. The capacitor is connected to a battery that creates a constant voltage VV = 7.50 VV . Throughout the problem, use ϵ0ϵ0 = 8.85×10−12 C2/N⋅m2C2/N⋅m2 .
Transcribed Image Text:A dielectric-filled parallel-plate capacitor has
plate area A = 30.0 cm² , plate separation d =
%3D
9.00 mm and dielectric constant k = 3.00. The
capacitor is connected to a battery that creates
a constant voltage V = 7.50 V. Throughout the
problem, use eo = 8.85x10¬12 C2 /N·m² .
Transcribed Image Text:Part B
The dielectric plate is now slowly pulled out of the capacitor, which remains connected to the battery. Find the energy Uz of the capacitor at the moment when the capacitor is half-filled with the dielectric.
Express your answer numerically in joules.
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U2 =
J
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Part C
The capacitor is now disconnected from the battery, and the dielectric plate is slowly removed the rest of the way out of the capacitor. Find the new energy of the capacitor, U3.
Express your answer numerically in joules.
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U3 =
J
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Part D
In the process of removing the remaining portion of the dielectric from the disconnected capacitor, how much work W is done by the external agent acting on the dielectric?
Express your answer numerically in joules.
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W =
J
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