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Homework #5, Chapter 7
1.
Find
H
at
P
(2,3,5) in cartesian coordinates if there is an infinitely long current
filament passing through the origin and point
C
.
The current of 50 A is di rected from
the origin to
C
, where the location of
C
is:
(a)
C
(0,0,1); (b)
C
(0,1,0).
2.
Given points
A
(1,2,4),
B
(2,1,3), and
C
(3,1,2), let a differential current element with
I
= 6A and 
d
L
 = 10
4
m be located at
A
.
The direction of
d
L
is from
A
to
B
.
Find
d
H
at
C
.
3.
The regions, 0
z
0.1 m and 0.3
z
0.4 m, are conducting slabs carrying uniform
current densities of 10 A/m
2
in opposite directions, as shown in
Fig. 8.22.
Find
H
x
at
z
= 0.04, 0.06, 0.26, 0.36, and 0.46 m.
4.
If
F
=
x
2
y
a
x
 2
z
a
y
+ (3
z
2
+
xy
)
a
z
, find
[
(
F)]
.
5.
Let
H
=
(2 /
)[1
(10
7
3
/6)]
a
8
a
z
A / m
for 0
0.01 m, and
H
=
(16 / 3
)
a
8
a
z
A / m
for
0.01 m.
(a) Find
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This note was uploaded on 11/07/2011 for the course E E 325 taught by Professor Raychen during the Spring '11 term at University of Texas.
 Spring '11
 RayChen
 Electromagnet

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