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Grade 11IIT JEE Entrance Exam

why the formula of finding realtive error in net resistance in parallel circuit is different from that of focal length of the lens even if they both are the reciporcaled variables?

Profile image of Saswat Kumar Swain
11 Years agoGrade 11
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1 Answer

Profile image of Prajwal Kavad
11 Years ago
bcoz in lens the focal length is constant, whereas total resistance is not a constant, it depends on the other resisitors

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