A certain parallel-plate capacitor consists of two plates, each with area 200 cm2 , separated by a 0.4 cm air gap. a) Compute its capacitance. b) If the capacitor is connected across a 500 V source, find the charge on it, the energy stored in it, and the value of E (electric field) between the plates. c) If a liquid with K=2.60 is poured between the plates so as to fill the air gap, how much additional charge will flow onto the capacitor from the 500 V source?

Principles of Physics: A Calculus-Based Text
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Author:Raymond A. Serway, John W. Jewett
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Chapter20: Electric Potential And Capacitance
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A certain parallel-plate capacitor consists of two plates, each with area 200 cm2
, separated by a 0.4
cm air gap. a) Compute its capacitance. b) If the capacitor is connected across a 500 V source, find the
charge on it, the energy stored in it, and the value of E (electric field) between the plates. c) If a liquid
with K=2.60 is poured between the plates so as to fill the air gap, how much additional charge will flow
onto the capacitor from the 500 V source?

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