4. A coaxial transmission line has inner and outer conductor radii a and b as shown in Figure 3. Between conductors (a < p < b) lies a conductive medium whose conductivity is olp) = ov/p, where o is a constant. The inner conductor is charged to potential Vo, and the outer conductor is grounded. (4a) Assuming de radial current I per unit length in z, determine the radial current density field J in A/m². (4b) Determine the electric field intensity E in terms of I and other parameters. (4c) By taking an appropriate line integral of E as found in part (4b), find an expression that relates Vo to I.
4. A coaxial transmission line has inner and outer conductor radii a and b as shown in Figure 3. Between conductors (a < p < b) lies a conductive medium whose conductivity is olp) = ov/p, where o is a constant. The inner conductor is charged to potential Vo, and the outer conductor is grounded. (4a) Assuming de radial current I per unit length in z, determine the radial current density field J in A/m². (4b) Determine the electric field intensity E in terms of I and other parameters. (4c) By taking an appropriate line integral of E as found in part (4b), find an expression that relates Vo to I.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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Transcribed Image Text:4. A coaxial transmission line has inner and outer conductor radii a and b as shown in
Figure 3. Between conductors (a < p < b) lies a conductive medium whose conductivity
is olp) = ov/p, where o is a constant. The inner conductor is charged to potential Vo, and
the outer conductor is grounded.
(4a) Assuming de radial current I per unit length in z, determine the radial current
density field J in A/m?.
(4b) Determine the electric field intensity E in terms of I and other parameters.
(4c) By taking an appropriate line integral of E as found in part (4b), find an expression
that relates Vo to I.

Transcribed Image Text:Copyright O The MoGraw-Hil Companies, Inc. Permission required
for reproduction or display
Insulating or
dielectric
Metal
conducting
spheres
material
Figure 1
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
C =
d d,
Area, S
d2
Conducting
plates
d
d
Figure 2
Copyright © The McGraw-Hill Companies, Inc.
Permission required for reproduction or display.
Conducting
cylinders
p=b
Figure 3
p=a
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