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![[Post New]](/templates/default/images/icon_minipost_new.gif) 16 May 2008 19:52:41 IST
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potential=V
capacitance=4 pi epsilonnaught (R.2.R/(2R-R))
=4 pi epsilonnaught .2R
V2(2 is the subscript)=(1/4piepsilonnaught) q/2R=V/2
so energy=1/2C(V-V2)^2
=(1/2) x(4piepsilonnaught) 2R x ((V^2)/4))
=pi epsilonnaught RV^2
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