Answered: 19.14 An incandescent lamp filament has… | bartleby

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#19.14 FIND THE GIVEN, REQUIRED, SOLUTION AND EXPLAIN PER STEPS

19.14 An incandescent lamp
filament has area 50 mm² and
operates at a temperature of 2127
°C. Assume that all the energy
furnished to the bulb is radiated
from it. If the filament's emissivity is
0.83, how much power must be
furnished to the bulb when it is
operating? Ans. 78 W

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