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Sahay Sir > Question Answers > AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions > Physics > Chapter 22 - Current Electricity > when a wire of resistance R is stretched and its radius becomes r/2 then its resistance will be

when a wire of resistance R is stretched and its radius becomes r/2 then its resistance will be

when a wire of resistance R is stretched and its radius becomes r/2 then its resistance will be