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![[Post New]](/templates/default/images/icon_minipost_new.gif) 7 Apr 2008 13:38:04 IST
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a wire of resistance R is stretched so that its length increases by 10% . The resistance ?
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![[Post New]](/templates/default/images/icon_minipost_new.gif) 7 Apr 2008 13:43:43 IST
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increases by 1.21..hint:vol. remains constant
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