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Does the size of a light effect it's energy use?
AnswerThere are two ways to answer this question, depending upon what the questioner means by the "size" of a light bulb..Size as form factorThe physical size of a light bulb makes no difference upon the amount of energy that is consumed. A large globe light, like around a vanity mirror, that is rated at 25 watts consumes exactly the same amount of energy as a small refrigerator light bulb also rated at 25 watts..Size as a power ratingThe wattage rating of a light bulb is directly proportional to energy consumed by that light bulb. A light bulb rated at 60 watts consumes 50% more energy than a 40 watt light bulb.
How does a lightbulb make light?
It depends which type of bulb you mean... The 'energy saver' ones - are miniature fluorescent bulbs - they have a light-emitting coating on the inside, which is 'stimulated' by mercury vapour created when the power flows through it. The older 'pearl' bulbs work by the resistance of a wire filament inside the bulb causing it to glow as it heats up.
Why does it require more work to light a 100 W light blub than it does to light a 150 W light blub?
It doesn't, and we can't imagine where you got that idea. A light bulb that's operating at 150W is dissipating 50% more energy (work) than a bulb operating at 100W. Could it be that someone had you on a bicycle, pedaling furiously to turn a generator and light some light bulbs ? If so, that's such an uncontrolled experiment, with so many variables involved, that you really can't draw any conclusions from what you saw, except for the fact that it takes work to generate electrical energy.
What kind of energy is required for a lamp to work?
Light and heat Energy.
In a light bulb what is energy transformed in to?
In typical light bulbs, or incandescent bulbs, the resistance to the current directed through the filament causes the filament to heat up, thus radiating light. The glass bulb around the filament is vacuum sealed to remove oxygen, which would rapidly oxidize and destroy the super heated, ultra thin filament. there are variations of this technology in which the bulb is not a vacuum, but is instead filled with different gasses surrounding the filament, which allows the filament to burn even hotter, creating more light. fluorescent bulbs work by creating a reaction between mercury vapor and phosphors. electric current excites the mercury atoms, which then release ultraviolet light. The ultraviolet light causes the phosphors to fluoresce, which creates light in our visible spectrum.
Can LED lights be used on a timer?
LEDs do not work on all timers. This is also the case with many energy saving bulbs. The timer lets enough voltage thru to partially light the LEDs and energy saving bulbs. LEDs will light fully when the timer is "on", but will continue to light dimly when the timer says "off". Energy saving bulbs will have a dim flicker when "off" thru a timer. I have not found a timer yet that solves this problem. If anyone knows of a solution I'd love to be able to use energy efficient lights with the convenience of a timer.
Does a light dimmer work with the new energy efficient light bulbs?
If you are looking to use the new energy efficient light bulbs on a light dimmer you will need to buy specially made dimmable CFLs. Not all energy efficient light bulbs are compatible with dimmers so be sure to check the packaging for information.
How do energy efficient light bulbs work?
Light bulbs always use energy. Therefore to save energy they should be switched off. But certain types of bulb use much less energy than others: Incandescent: 10 lumens per watt Halogen: 13 lumens per watt Fluorescent: 50-60 lumens per watt (cheap to buy) LED: 50-70 lumens per watt (expensive to buy)
Do televisions use light bulbs to work?
No
Why do all bulbs on right rear not light up but do light up if switched to left side?
burnt bulbs replace them correct answer if the bulbs work on one side, but same bulbs dont work on other side , u have a broken wire to the side that doesnot work if the bulbs were burnt out, they would not work on either side
Why is the energy of a flashlight heat and light energy?
because old - style light bulbs work by passing an electric current through a thin piece of metal (tungsten is commonly used in these) to heat it up enough to make it glow. In these old - fashioned light bulbs, most of the input energy is given out as heat (about 95%) and the rest light. However, in new, so called,"energy efficient" light bulbs, an electric current is passed through different gases (including mercury gas) to make the particles collide with each - other and give out light. Depending what metal vapour you use determines the colour of the light given off. These are more energy efficient because about 60% of the energy given out is heat, and 40% light, so it isn't ideal, but is better than the old light bulbs. However, these new light bulbs might not be entirely benefitial as they are less cost - effective than the old ones. Written by a 12 - year old!
Why wont your dashboard light work in a 2000 expedition?
Check fuses and light bulbs
What light bulbs provide the most natural light?
Any natural light bulbs that use incandescent lighting will work well, and give off a rounder light than the "sterile white" lighting of normal bulbs.
How does a tradtional light bulb and a energy saving light bulb both work?
well, i asked this question, realized the answer stunk, and just said hey! I tell theese people to go on wikipedia!
How many jewells dose a light bulbs work?
spelling is good
Why do you still have daylight saving?
For farmers to have more light to work
Fluorescent Light Bulbs?
form_title= Fluorescent Light Bulbs form_header= Brighten up your home with fluorescent light bulbs! What wattage do you need?*= _ [50] How many bulbs do you need?*= {1, 2, 3, 4, 5, More than 5} Where will the bulbs be used?*= _ [50]
