Consider a spherical system of charges as shown in the figure below. At the center, a...
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Consider a spherical system of charges as shown in the figure below. At the center, a sphere composed of ideal conductor; that is, a perfect electric conductor (PEC), is located and it carries a total charge of Q=7 C. The inner PEC sphere has a radius of a=0.9 m and it is surrounded by a spherical dielectric shell with a radius of b = 3.8 m. It is known that the relative permittivity of the spherical dielectric shell is &,=39. The volumetric charge density in the dielectric is given with py=r C/m³. Finally, the spherical dielectric shell is surrounded by a grounded conducting spherical shell (PEC shell). The thickness of the outer grounded conducting shell is small and it can be ignored. Based on this configuration, find the INCORRECT statement below. РЕС b a Dielectric Region O In the dielectric region, the electric field intensity (JE) at r=2.35 m is JEJ=7750421258.55 V/m, to increase the strength at this point (r=2.35 m) the relative permittivity (er) of the dielectric should be decreased. O In the dielectric region, the electric field intensity (JE]) is stronger than the inner conductor sphere. O In the dielectric region, at r=2.35 m the electric flux density is IDJ = 2.14 C/m2 and to increase the magnitude of electric flux density the relative permittivity (er) should be increased. O In the dielectric region, the electric field intensity (JEI) is stronger than the total field outside the grounded shell. O In the dielectric region, the total absolute charge is [Qdielectric|= 1989.91 C and it is less than the total absolute charge accumulated on the grounded spherical shelI |Qshell|=1996.91 C. Consider a spherical system of charges as shown in the figure below. At the center, a sphere composed of ideal conductor; that is, a perfect electric conductor (PEC), is located and it carries a total charge of Q=7 C. The inner PEC sphere has a radius of a=0.9 m and it is surrounded by a spherical dielectric shell with a radius of b = 3.8 m. It is known that the relative permittivity of the spherical dielectric shell is &,=39. The volumetric charge density in the dielectric is given with py=r C/m³. Finally, the spherical dielectric shell is surrounded by a grounded conducting spherical shell (PEC shell). The thickness of the outer grounded conducting shell is small and it can be ignored. Based on this configuration, find the INCORRECT statement below. РЕС b a Dielectric Region O In the dielectric region, the electric field intensity (JE) at r=2.35 m is JEJ=7750421258.55 V/m, to increase the strength at this point (r=2.35 m) the relative permittivity (er) of the dielectric should be decreased. O In the dielectric region, the electric field intensity (JE]) is stronger than the inner conductor sphere. O In the dielectric region, at r=2.35 m the electric flux density is IDJ = 2.14 C/m2 and to increase the magnitude of electric flux density the relative permittivity (er) should be increased. O In the dielectric region, the electric field intensity (JEI) is stronger than the total field outside the grounded shell. O In the dielectric region, the total absolute charge is [Qdielectric|= 1989.91 C and it is less than the total absolute charge accumulated on the grounded spherical shelI |Qshell|=1996.91 C.
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Related Book For
Fundamentals of Momentum, Heat and Mass Transfer
ISBN: 978-1118947463
6th edition
Authors: James Welty, Gregory L. Rorrer, David G. Foster
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