Chapter 2441P24.50(a)The charge +qat the center induces charge −qon the inner surface of the conductor,where its surface density is:σπaqa=−42.(b)The outer surface carries charge Qq+with densitybb=+42.P24.51Use Gauss’s Law to evaluate the electric field in each region, recalling that the electric field is zeroeverywhere within conducting materials. The results are:E=0 inside the sphere and within the material of the shellEkQre=2between the sphere and shell, directed radially inwardQre=22outside the shell, directed radially outward .Charge−Qis on the outer surface of the sphere.Charge+Qis on the inner surface of the shell,and+2Qis on the outer surface of the shell.P24.52An approximate sketch is given at the right. Note that the electric field linesshould be perpendicular to the conductor both inside and outside.
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .