
Concept explainers
The electron beam in a certain cathode ray tube possesses cylindrical symmetry, and the charge density is represented by
(a) Find the total charge per meter along the length of the beam, (b) If the electron velocity is 5Ă—10’ m/s, and with one ampere define as 1C/s, find the beam current.

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Chapter 2 Solutions
Engineering Electromagnetics
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