In a house, usually 100 watts approx
It depends upon power of phosphorescent light. The power determines energy consumption.
15 watts.
Not much work at all, just go to the switch and flip it up. As for how much energy does it take, that is a different matter.
light energy
they take the waves of energy from light and run the waves though a energy transporter then therefor you have energy
they take the waves of energy from light and run the waves though a energy transporter then therefor you have energy
Light
Incandescent light bulbs are not energy efficient, as much of the energy they use is converted into heat rather than light. Only about 10% of the energy they consume is actually turned into light.
The light dependent reactions take in the light energy and convert that to chemical energy, but it is in the Calvin cycle (light independent reactions) where the chemical energy is stored in a complex sugar.
mechanical to electrical to light energy
I am not sure how much of a proof this is; but light energy is involved both in conservation of energy, and in conservation of momentum. A photon has both energy and momentum.I am not sure how much of a proof this is; but light energy is involved both in conservation of energy, and in conservation of momentum. A photon has both energy and momentum.I am not sure how much of a proof this is; but light energy is involved both in conservation of energy, and in conservation of momentum. A photon has both energy and momentum.I am not sure how much of a proof this is; but light energy is involved both in conservation of energy, and in conservation of momentum. A photon has both energy and momentum.
The amount of electrical energy it uses in a fixed time is the power, measured in watts, that should be marked on the light bulb when it's bought.