engineering recuitment GATE ME 2023-24 Test Series Heat Transfer Conduction Heat Conduction Through Plane and Composite Walls
A copper sheet of 10 mm thickness is brought into contact with a steel sheet of 20 mm thickness. The outer surface of copper is kept at 100°C whereas the outer surface of steel is maintained at 0°C. If the ratio of thermal conductivity of copper and steel is 3: 1, then the interface temperature in °C is
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