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 7, Problem 7.30P
To determine

(a)

The value of H inside.

To determine

(b)

The total magnetic flux inside the conductor.

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Determine the capacitance of: (a) a 1-ft length of 35B/U coaxial cable,which has an inner conductor 0.1045 in. in diameter, a polyethylene dielectric(r = 2.26 from Table C.1), and an outer conductor that has an inner diameter of0.680 in.; (b) a conducting sphere of radius 2.5 mm, covered with a polyethylenelayer 2 mm thick, surrounded by a conducting sphere of radius 4.5 mm; (c) tworectangular conducting plates, 1 cm by 4 cm, with negligible thickness, betweenwhich are three sheets of dielectric, each 1 cm by 4 cm, and 0.1 mm thick, havingdielectric constants of 1.5, 2.5, and 6.
A spherical conductor is known to have a radius and a total charge of 10 cm and 20uC. If points A and B are 15 cm and 5 cm from the center of the conductor, respectively. If a test charge, q = 25mC, is to be moved from A to B, determine the following: a. The potential at A;
Given a coaxial capacitor with the length of L which has two coaxial conductors with radius a=1 cm and b= 4 cm for inner and outer conductor, respectively. The inner conductor carries the total charge of –Q C whilst the outer carries +Q C. If the length of the coaxial, L = 100m and the coaxial is filled with the lossy Teflon (εr = 2.2 and σ = 4 Sm-1), determine:    i. Potential Different between r = 3cm and r = 6cm   ii. Energy in region a<r<b        Note: In dielectric material, permittivity ε=εoεr and D=εE

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Engineering Electromagnetics

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Publisher:Mcgraw-hill Education,