Which of the following circular rods (given radius `r` and length `l`) each made of the same material and whose ends are maintained at the same temperature will conduct most heat?A. `r=2r_(0),l=2l_(0)`B. `r=2r_(0),l=l_(0)`C. `r=r_(0) , l=2l_(0)`D. `r=r_(0), l=l_(0)`

Which of the following circular rods (given radius `r` and length `l`)

1.	Which of the following circular rods (given radius `r` and length `l`) each made of the same material and whose ends are maintained at the same temperature will conduct most heat?A. `r=2r_(0),l=2l_(0)`B. `r=2r_(0),l=l_(0)`C. `r=r_(0) , l=2l_(0)`D. `r=r_(0), l=l_(0)`
Answer» Correct Answer - B Use `R_("Heat")=(l)/(KA)=(l)/(K pir^(2))`

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Which of the following circular rods (given radius `r` and length `l`) each made of the same material and whose ends are maintained at the same temperature will conduct most heat?A. `r=2r_(0),l=2l_(0)`B. `r=2r_(0),l=l_(0)`C. `r=r_(0) , l=2l_(0)`D. `r=r_(0), l=l_(0)`

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