Engineering Electromagnetics
Engineering Electromagnetics
9th Edition
ISBN: 9780078028151
Author: Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher: Mcgraw-hill Education,
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Chapter 2, Problem 2.12P

Electrons are in random in a fixed region in space. During any 1μs interval, the probability of finding an electron in a subregion of volume 10-15 m2 is 0.27. What volume charge density, appropriate for such time duration, should be assigned to that subregion?

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