HC Verma: Concepts of Physics - Volume 2 Heat Transfer Pages 98-102: Q23 Solution: Figure shows a copper rod joined to a steel rod. The rods have…

QPages 98-102: Q23: HC Verma: Concepts of Physics - Volume 2 Heat Transfer Pages 98-102: Q23 Solution: Figure shows a copper rod joined to a steel rod. The rods have…

Figure shows a copper rod joined to a steel rod. The rods have equal length and equal cross sectional area. The free end of the copper rod is kept at 0�C and that of the steel rod is kept at 100�C. Find the temperature at the junction of the rods. Conductivity of copper =

390 \text{ W m}^{-1} \text{ �C}^{-1}

and that of steel =

46 \text{ W m}^{-1} \text{ �C}^{-1}

Step-by-Step Verified Solution

**Answer:** Junction temperature = 10.6�C. **Step-by-Step Explanation:** Given: K_Cu = 390, K_steel = 46, equal lengths and areas. At junction, heat currents equal:

K_{Cu}(T - 0) = K_{steel}(100 - T)

390T = 46(100 - T)

390T = 4600 - 46T \Rightarrow 436T = 4600 \Rightarrow T = 10.6�\text{C}

QPages 98-102: Q23: HC Verma: Concepts of Physics - Volume 2 Heat Transfer Pages 98-102: Q23 Solution: Figure shows a copper rod joined to a steel rod. The rods have…

Step-by-Step Verified Solution

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