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![[Post New]](/templates/default/images/icon_minipost_new.gif) 17 Jun 2007 17:17:33 IST
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when inner most and outermost shells are earthed...there POTENTIAL becomes 0... now equate their potentials to 0 and get the answers
note:charge on the innermost and outer most spheres are changed but the charge on middle shell remains same....
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