An incandescent lightbulb is an inexpensive but highly inefficient device that converts electrical energy into light. it converts about 5 percent of the electrical energy it consumes into light while converting the remaining 95 percent into heat. the glass bulb of the lamp heats up very quickly as a result of absorbing all that heat and dissipating it to the surroundings by convection and radiation. consider an 8-cm-diameter, 60-w lightbulb in a room at 25°c. the emissivity of the glass is 0.9. assuming that 5 percent of the energy passes through the glass bulb as light with negligible absorption and the rest of the energy is absorbed and dissipated by the bulb itself by natural convection and radiation, determine the equilibrium temperature of the glass bulb. assume the interior surfaces of the room to be at room temperature
Answers: 1
Physics, 22.06.2019 11:30
What is the name for the remnant of an asymptotic giant that has lost its shells? black dwarf white dwarf yellow giant black hole
Answers: 3
Physics, 22.06.2019 20:30
Avehicle accelerates from 0 to 30 m/s in 10 seconds on a straight road
Answers: 2
Physics, 23.06.2019 00:00
Based on this activity, is kinetic energy always transformed into potential energy?
Answers: 1
Physics, 23.06.2019 03:30
Ineed to answer this problem but i lack in knowledge, what should i study to answer this problem? i have never used derivatives in a physics problem so i'm not sure what's happening and i can't find videos explaining.
Answers: 2
An incandescent lightbulb is an inexpensive but highly inefficient device that converts electrical e...
Mathematics, 29.07.2019 18:10
Mathematics, 29.07.2019 18:10
English, 29.07.2019 18:10
Health, 29.07.2019 18:10
History, 29.07.2019 18:10
Computers and Technology, 29.07.2019 18:10