Use the equation below to find the electric potential distance z above the center of a flat circular disk of radius R with a uniform surface charge density σ. V(r) = 1 ATCO 1º (M) r -da' Take the gradient of V(r). Is your answer consistent with the electric field you

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A: Given data  R = 0.122 m  a = 1.48×10-6 cm3y  = 36 ×1100 = 0.36 mε° = 8.85 ×× 10-12c2Nm2

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A: Given,  Q= 10μC=10×10-6 Cra=2 mrb= 8 mr1= 4 m from Qrc= 12 mrd= 20 mr2 = 10 m from Q