Multiple Choice
The filament in a light bulb has a diameter of 0.050 mm and an emissivity e = 1.0. The temperature of the filament is 3000°C. How long should the filament be in order to radiate 60 W of power? The Stefan-Boltzmann constant is 5.67 x 10-8 W/(m2·K4) .
A) 11 cm
B) 9.4 cm
C) 8.6 cm
D) 7.2 cm
E) 5.9 cm
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q26: When a bimetallic strip is cooled, the
Q27: A pendulum clock has a pendulum shaft
Q28: You are given a piece of pie
Q29: Ten meter long steel railroad rails are
Q30: If a thermometer measures the temperature of
Q32: The type of heat transfer that occurs
Q33: A 400-g stainless steel tea kettle containing
Q34: The Concorde's exterior is made of aluminum,
Q35: A 400-g piece of metal at 120°C
Q36: A glass tea kettle containing 500 g