An insulating sphere with radius a has a uniform charge density ρ. The sphere is not centered at the origin but at r=b. Find the electric field at any point inside sphere is E=ρ(x−b)nε0. what is the value of n
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Solution
Using Gauss's law if E is the field inside sphere , E.4π(x−b)2=Qinϵ0=ρ.(4/3)π(x−b)3ϵ0 or E=ρ(x−b)3ϵ0