Introduction to Electrodynamics
Introduction to Electrodynamics
4th Edition
ISBN: 9781108420419
Author: David J. Griffiths
Publisher: Cambridge University Press
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Chapter 2.4, Problem 2.34P

Find the energy stored in a uniformly charged solid sphere of radiusR and charge q. Do it three different ways:
(a) Use Eq. 2.43. You found the potential in Prob. 2.21.
(b) Use Eq. 2.45. Don’t forget to integrate over all space.
(c) Use Eq. 2.44. Take a spherical volume of radius a. What happens as a ?

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