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What is the temperature of the steel - c...

What is the temperature of the steel - copper junction in the steady state of the system shown in Fig. Length of the steel rod = 15.0 cm, length of the copper rod = 10.0 cm, temperature of the furnace `=400" "^(@)C`, temperature of the other end `=0" "^(@)C`. The area of cross section of the steel rod is twice that of the copper rod.
(Thermal conductivity of steel `=50.2" J s"^(-1)m^(-1)K^(-1),` and of copper `=385" J s"^(-1)m-1" "K^(-1)`).

Text Solution

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`T=59.24^(@)C`
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