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[" 2.21Two chargen "-9" and "+q" are loc...

[" 2.21Two chargen "-9" and "+q" are located at points "10.0,-01" and "10.0" ."],[" respectively."],[" (a) What is the electrostatic potential at the points "10,0." A and "],[(x,y,0)" ? "],[[" (b) Obtain the dependence of potential on the distance "r" of a point "],[" from the origin when "r/a>>1]],[" (c) How much work is done in moving a small test charge from the "],[" point "(5.0.0)" to "(-7.0.0)" along the "x" axis? Does the answer "],[" point "(5.0.0)" to "(-7.0.0)" along the "x" axis? Does the answer "]

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