Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
4th Edition
ISBN: 9780134110684
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
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Chapter 25, Problem 62EAP

Il Electrodes of area A are spaced distance d apart to form a parallel-plate capacitor. The electrodes are charged to ± q.

a. What is the infinitesimal increase in electric potential energy dU if an infinitesimal amount of charge dq is moved from the negative electrode to the positive electrode?

b. An uncharged capacitor can be charged to ± Q by transfer-ring charge dq over and over and over. Use your answer to part a to show that the potential energy of a capacitor charged to

± Q is U cap = 1 2 QΔV C

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Chapter 25 Solutions

Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)

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