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A point charge Q is placed at the origin. Find the electrostatic energy stored outside the sphere of radius R centred at the origin.$\bigg(E= \large\frac{1}{2}\frac{Q^2}{C}\bigg)$

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$(D)\;\large\frac{Q^2}{\pi \in_0 R} $
Hence D is the correct answer.
answered Jun 17, 2014 by meena.p

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