Question
A slab of insulating material of thickness 6 cm and thermal conductivity 1.4kJ/m hr deg is placed between and is in contact with two parallel electrodes, and is then subjected to high frequency dielectric heating at a uniform rate of 140,000kJ/m³ hr. At steady state coefficients of combined radiation and convection are 42 and 48 kJ/m² hr deg. If atmospheric temperature is 25 degree Celsius, find surface temperatures?
Answer: Option C
Answer: (c).121.60 degree Celsius and 115.45 degree Celsius
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Answer: (c).121.60 degree Celsius and 115.45 degree Celsius
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