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The ratio of thermal conductivity of two rods different material is 5:4.The two rods of same area of cross section and same thermal resistance wil the length in the ratio:

pallavi pradeep bhardwaj , 15 Years ago
Grade 12
anser 1 Answers
askIITianexpert IITDelhi

Last Activity: 15 Years ago

Thermal resistance =l/KA

So, l1/l2 = K1/K2 =5/4

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