A point charge Q=2000pc, is at the origin of spherical coordinates. A concentric spherical distribution of charge at r = 1m has a charge density ps=40t pC/m2. What surface charge density on a concentric shell at r =2m would result in D=0 for r> 2m. * O 100.5 pC/m^2 -71.2 pC/m*2 O 71.2 pC/m^2 100.5 pC/m^2
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