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Question: why divergence of E field is not zero?

Question:why divergence of E field is not zero?

ComputerUser 535 Maple
physics divergence
May 26 2015
0

r := sqrt(x^2+y^2+z^2);
divE := diff(e*x/(4*Pi*r^3), x)+diff(e*x/(4*Pi*r^3), y)+diff(e*x/(4*Pi*r^3),z);
simplify(divE);
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