What is the total thermal resistance of cylinder

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A hollow cylinder of length L is made of two cylindrical shells. One of the shell has inner radius r1 and outer radius r2 and conductivity k1 Other shell has inner radius r2 and outer radius r3 and conductivity k2. You can neglect the contact resistance between the shells. What is the total thermal resistance of this cylinder (from surface of radius r1 to outer radius r3).

Reference no: EM131436019

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