11 positive charges of magnitude Q are symmetrically placed on the circle of radius r. Later one of the charges is removed. What is the magnitude of the electric field at the center of the circle? 11Q I. 2nE,r2| Q II. |11nɛ,r2| Q III. cos(2"/11) 11Q IV. 4TE,r2| Q V. cos("/11) Απερ2 O Iv O v O hiçbiri
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