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Earn 100
The figure shows the face and interface temperature of a composite slab containing of four layers of two materials having identical thickness. Under steady State condition, find the value of temperature .
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Important Questions on Heat Transfer
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Three rods made of the same material and having the same cross-section have been joined as shown in the figure. Each rod is of the same length. The left and right ends are kept at 0°C and 90°C respectively. The temperature of the junction of the three rods will be:
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The coefficient of thermal conductivity of a metal depends on:
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Which of the following cylindrical rods will conduct most heat when their ends are maintained at the same steady temperature?
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Gravitational force is required for-
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The layers of atmosphere are heated through
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The lengths and radii of two rods made of same material are in the ratios and respectively; If the temperature difference between the ends for the two rods be the same, then in the steady state, the amount of heat flowing per second through them will be in the ratio:
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Two metal rods, 1 & 2 of same length have same temperature difference between their ends, their thermal conductivities are K1 & K2 and cross
sectional areas A1 & A2 respectively. What is required condition for same rate of heat conduction in them.
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The temperature of hot and cold end of a 20 cm long rod in thermal steady state are at 100°C and 20°C respectively. Temperature at the centre of the rod is
