Engineering Electromagnetics
Engineering Electromagnetics
9th Edition
ISBN: 9781260029963
Author: Hayt
Publisher: MCG
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Chapter 3, Problem 3.8P

Use Gauss, law in integral form to show that an inverse distance field in spherical coordinates, D= Aar/,r where A is a constant. requires every spherical shell of 1 m thickness to contains 4�A coulombs, of charge Does this indicate a continuous charge distribution? If so, find the charge density variation with r.

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Volume charge density is located in free space as ρν = 2e−100r nC/m3 for 0 < r < 3 mm, and ρν = 0 elsewhere. Find the total charge enclosed by the spherical surface r = 2 mm. By using Gauss’s law, calculate the value of Dr on the surface r = 2 mm.
A charge located at the origin in free space produces a fields for which Ez=2kV/m at point P(-2, 4, -1) Find E at D(3, 4, 2) in spherical coordinates system.
1. Determine the total charge contained in a line extending from Cartesian point (3, 2, 1)to (5, 4, 7) carrying line charge of density p1(x, y,z)=2x +3y -5z C/m. note: this question is EMT ( electromagnetic field )

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