(Solution Download) A strip heater with an area of 0.05m2 has to radiate at 600°C to surroundings at 30°C. Determine the

A strip heater with an area of 0.05m2 has to radiate at 600°C to surroundings at 30°C. Determine the rating assuming that convection is negligible. 1.9 The filament of an incandescent lamp of 60 W rating has a total surface area of 40mm2. If the surrounding is at 30°C and if 90% of the power is converted to heat and radiated, determine the temperature of the filament