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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.
What else can I help you with?
What is the least efficient kind of light bulb?
It is the Incandescent light bulb. Most of the energy are lost as heat
Is a light bulb a mechanical energy?
No. It converts electrical energy into light and thermal energy only.
How do light bulbs cause global warming?
In a incandescent light bulb almost 90% of the energy taken in is being wasted as heat. only 10% is being used as visible light. this means that alot of energy taken in from ex sun,vind and water are not being used as it should have been. Thats why the LED bulbs are so good because they dont give out as much wasted energy
Is it correct to say that an incandescent bulb and a light stick use the same form of energy to create light Why or why not?
No. One is chemical energy, the other is electrical energy.
Why is the light bulb not a closed system?
it is a closed system. no matter or energy flows across the boundary
What happens to the energy wasted by the light bulb?
The wasted energy by a light bulb is primarily given off as heat. This heat is dispersed into the surrounding environment, contributing to the overall temperature of the room.
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.
What wasted energy is transferred from the bulb to its surroundings?
Wasted energy in the form of heat is transferred from the bulb to its surroundings. This is because light bulbs are not 100% efficient at converting electrical energy into light energy, so some energy is lost as heat during the process.
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.
What happens to electrical energy as a light bulb light?
its being transferred
How does the heat generated by a light bulb affect its overall energy efficiency?
The heat generated by a light bulb reduces its overall energy efficiency because it represents wasted energy that is not converted into light. This inefficiency results in higher energy consumption and increased costs.
Why is a light bulb so inefficient?
A traditional incandescent light bulb is inefficient because it produces more heat than light, wasting energy. Only about 5-10% of the energy consumed by an incandescent bulb is converted into visible light, with the rest being wasted as heat.
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 is the wasted energy from a bulb to its surrounding?
The wasted energy from a bulb to its surroundings is in the form of heat. Incandescent bulbs, for example, emit a significant amount of heat in addition to light, making them less energy-efficient compared to LED bulbs which produce less heat. This wasted heat energy contributes to higher energy costs and can also affect the surrounding temperature.
What is the significance of a flashing light bulb in terms of energy efficiency and environmental impact?
A flashing light bulb signifies energy inefficiency and can have a negative environmental impact due to the wasted energy and increased carbon emissions associated with frequent on-off cycles.
When a light bulb is lit electrical energy is changed into light energy and what happens?
When a light bulb is lit, electrical energy is converted into light energy and heat energy. The electricity flows through the filament of the bulb, causing it to glow and emit light while also generating heat due to resistance in the filament.
What happens to the electrical energy used to light a light bulb?
It heats the filament (which glows and so generates electromagnetic energy).
