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![[Post New]](/templates/default/images/icon_minipost_new.gif) 27 Mar 2008 12:54:29 IST
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hey..
see this one..
wo you know the formula for heat conduction...
dH/dt = KA {delT/delL}
so...
del L = KA del T/rate of flow of heat......
del L is distance b/w the two points in rod...
del T is difference of temperature b/w those two points........
so just compare the above equation for iron and alu ...
i mean divide the equations such that del T cancels out for both
the.. u'll get the ratio of del L1 : del L2
it will be equal to K1 : K2
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size doesnt matter, brains do...
vignesh |
this reply: 5 points
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