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In the question when arc ACD and ADB are made of same material.,the heat carried between A and B is H.If ADB is replaced with other material and heat becomes 2H.if temperature is fixed. find ratio of new and old conductivity?

In the question when arc ACD and ADB are made of same material.,the heat carried between A and B is H.If ADB is replaced with other material and heat becomes 2H.if temperature is fixed. find ratio of new and old conductivity?

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Grade:12th pass

1 Answers

Khimraj
3007 Points
7 years ago
As heat is directely propotel yo resistance for constant temperature diff. And as the resistance is given by R =l/KA. And according to question 2(4K1+ 4K1/3) = (4K2 + 4K1/3). So K2/K1 = 7/3.Hope it clears. If still u have doubts then please clarify. If u like answer then please approve the answer.

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