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 9, Problem 9.11P

Let the internal dimensions of a coaxial capacitor be a = 1.2 cm, b = 4 cm, and l = 40 cm. The homogeneous material inside the capacitor has the parameters e= 10-11 F/m. tt = 10-5 H/m, and t7 = 10-5 S/m. If the electric field intensity is E = (106 /p) cos 105 taP V/m, find (a) J; (b) the total conduction current Ic through the capacitor; (c) the total displacement current Id through the capacitor, (d) the ratio of the amplitude of Ia to that of IC, the quality factor of the capacitor.

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