Determine the electric field at the origin

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A. Four charged particles are arranged in a diamond around the origin. There is a +2nc charge located at 4mx, a -8nC charge located at 5my, -6nC charge located at -4mx and a fourth charge located at -5my. What should the fourth charge be so that the voltage at the origin is zero?

B. What is the electric field at the origin. Is it surprising that it is not zero?

Reference no: EM13996257

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