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 2.14P

The electron beam in a certain cathode ray tube possesses cylindrical symmetry, and the charge density is represented by p v = 0.1 ( p 2 + 10 8 ) p / C m 3 for 0 < p < 3 × 10 4 m ,

(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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