Solved Problems
Q 1. Calculate the amount of heat that will be conducted in an hour through each square centimetre of an iron plate 3 centimetre thick, its two sides being kept at the respective temperatures of 50°C and 200°C, thermal conductivity of iron = 0.12 cgs unit.
Ans: We know
Q 2. One end of a copper bar of 25 cm long, 10 sq cm in cross section is kept at 100°C, the other end is cooled by a spiral through which water flows, the water entering the spiral at 14°C. What must be the rate of flow of water if this end is never to rise above 20°C when conductivity = 0. 9 cgs unit?
Ans: We know
Q 3. Heat is supplied to a slab of ...
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