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electircal or photo electrical energy. Photons are shot across from panel to another panel this sparking back and forth creates the light you see.

Answer: Electricity is the energy input into a light bulb. It either heats afilamanet to produce heat and light, r excites the gas contained in the bulb (in flluorescent tube) to emit visible light directly or emit UV light which interacts with a phosphor coating in the tubes to emit light.

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15y ago
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13y ago

A light bulb of 60 watts if we leave it on for an hour it will use 60 watt hours or .06 kWh.

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7y ago

electromagnetic radiation

In incandescent bulbs this is distributed as roughly 90% infrared, 9% visible light, 1% ultraviolet.

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12y ago

Thermal energy

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5y ago

Energy is dissipated as heat and light

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Q: What happens to the energy wasted in a light bulb?
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What happens to the energy wasted by the light bulb?

Energy is dissipated as heat and light


Why does a non energy saving light bulb give off more heat than an energy saving light bulb?

Any of the wasted energy that is not converted to light will be converted to heat.Any of the wasted energy that is not converted to light will be converted to heat.Any of the wasted energy that is not converted to light will be converted to heat.Any of the wasted energy that is not converted to light will be converted to heat.


When a light bulb is lit electrical energy is changed into light energy and what happens?

That means that the bulb looks bright.


Why is an incadescent bulb a very inefficient light source?

An incandescent light bulb is very inefficient light source because of the amount of heat energy wasted when it is energized.


Does a low-energy light-bulb create more heat in a room?

Compared to other types of light-bulb, energy-saving light bulbs will create less heat. This is because any wasted energy is converted to heat.


What happens to electrical energy as a light bulb light?

its being transferred


What is the wasted energy in a torch?

The main wasted energy is the heat generated in the bulb. If it is an incandescent bulb 70-80% of the total energy from the battery is wasted as heat.


What happens to light when you turn off the light bulb?

The energy to produce the light stops and the light stops.


How much energy is wasted if the light bulb is 5 percent efficient?

It is not quite as straight forward as saying 95%. All energy going through the light bulb is being used in one form or another. If the room needs heat, the bulb is assisting in this heating. We use light bulbs like this for incubators or to keep pump rooms from freezing in the winter (two examples). In both of those cases, the light is really the only wasted portion of the energy consumed. If we are discussing only the light portion of the bulb. 95% of the energy goes to non visible light consumption.


What happens to the electrical energy used to light a light bulb?

It heats the filament (which glows and so generates electromagnetic energy).


What happens to electrical energy when a light bulb lights?

It goes back to that source


What energy is wasted from a lamp?

that is dependant on the wattage of the bulb, the wattage 40W, 60W, 100W, is the rated power that a bulb will use. 1kW is equal to 1000W 1kWh is equal to 1000W per hour. kW stands for kilo watt I hope that helps