A long coaxial cylindrical cable consists of a metal wire of radius a, which is surrounded by a concentric metal tube of inner radius b. The space between them is filled with a linear dielectric material of susceptibility x. A free charge per length 1 = Q/L is placed on the inner cable and an opposite charge per length is placed on the outer tube. (a) Using Gauss's law find the electric displacement D in the region between the two conductors a

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A long coaxial cylindrical cable consists of a metal wire of radius a, which is surrounded
by a concentric metal tube of inner radius b. The space between them is filled with a
linear dielectric material of susceptibility x. A free charge per length 2 = Q/L is placed on
the inner cable and an opposite charge per length is placed on the outer tube.
(a) Using Gauss's law find the electric displacement D in the region between the two
conductors a <s < b, where s is the distance from the cylindrical axis.
(b) Using the susceptibility x find the electric field E and the polarization P in the
region between the two conductors. [
(c) Find the bound volume and surface charge densities on the dielectric material.
(d) Verify that the discontinuity of E at s = a satisfies Gauss's law for the total
electric charge.
Transcribed Image Text:A long coaxial cylindrical cable consists of a metal wire of radius a, which is surrounded by a concentric metal tube of inner radius b. The space between them is filled with a linear dielectric material of susceptibility x. A free charge per length 2 = Q/L is placed on the inner cable and an opposite charge per length is placed on the outer tube. (a) Using Gauss's law find the electric displacement D in the region between the two conductors a <s < b, where s is the distance from the cylindrical axis. (b) Using the susceptibility x find the electric field E and the polarization P in the region between the two conductors. [ (c) Find the bound volume and surface charge densities on the dielectric material. (d) Verify that the discontinuity of E at s = a satisfies Gauss's law for the total electric charge.
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