Homework II
Homework is due Monday, September 28th , 9:40 a.m.
Each problem counts 15 points.
Problem 1
.
(a) Is the electrostatic force between two electrons much larger than the gravitational force
between these electrons? (Justify your answer by calcul
Fundamentals of
ELECTROMAGNETICS
Lecture 5
Electrostatic Field in Materials
Instructor: Dr. Mihai DIMIAN
Conductor in Electrostatic Field
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+

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E=0
+
3.
V=const.

2.
The conductor is an equipotential
body.
The charge on a conductor must
reside entire
Fundamentals of
ELECTROMAGNETICS
Lecture 2 and 3
Integral form of the Gausss law
Differential form of the Gausss law
Applications of Gausss law
Instructor: Dr. Mihai DIMIAN
Gauss Divergence
D.ds = dv
We want a D)(r) = (r)
between charge
(arelationshipan
Total volume between the 42o latitude and the equator is the volume Vs plus the volume of the cone
having 42o latitude as the base and Earth center as the top. Vc = (/3) (rE*sin (4/15)2*rE*cos(4/15)
Consequently, the volume ratio is (Vs+Vc)/VEarth = [(1/2
ELECTROMAGNETICS THEORY
AND ITS APPLICATIONS
Lecture 1
Review of Electrostatics
Instructor: Dr. Mihai DIMIAN
Publisher: John Wiley & Sons
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