A slab of copper of thickness b = 2.00 mm is thrust into a parallel plate capacitor

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A slab of copper of thickness b = 2.00 mm is thrust into a parallel plate capacitor of plate area A = 2.40 cm2 and plate separation d = 5.00 mm, as shown in Figure the slab is exactly between the plates.

(a) What is the capacitance after the slab is introduced?

(b) If a charge q = 3.40μC is maintained on the plates, what is the ratio of the stored energy before to that after the slab is inserted?

(d) Is the slab sucked in or must it be pushed in?

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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Question Posted: Jan 19, 2011 03:46 AM

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A slab of copper of thickness b = 2.00 mm is thrust into a parallel plate capacitor

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Copper

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a The length d is effectively shortened by b so C 4d b 070...View the full answer

Fundamentals of Physics

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