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For comparable lumens you pay less for energy efficient bulbs. For example, a typical 75 watt incandescent bulb provides about 850 lumens. The same light from an LED bulb would only consume about 12 watts. So even though the LED costs more to buy, it costs only about 16% of the cost of a comparable incandescent to operate.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agothe CFL is nowadays because because the input of CFL is less as compare together lamp while giving higher output of light
Wiki User
∙ 11y agoA standard filament lamp uses a tungsten filament to produce a light output. Low energy lamps use either a spiral fluorescent tube or LEDs to produce a light output.
Wiki User
∙ 10y agoBecause banter lols.
Wiki User
∙ 6y agoThey are not efficient compared to LED.
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How the electric energy in in bulbs converted to light energy?
The motion of the electrons in the filament creates HEAT. The heat will excite the atoms of the filament until they emit Photons due to the jumping of electrons to higher energy shells.
Why do light bulbs glow?
Either the filament or a gas inside is heated. Once it gets hot enough, it dissipates some of the energy as heat and light.
Is a light bulb an example of light energy or of electrical energy?
A light bulb converts energy from one form to another: from electrical energy to thermal energy in the form of light and heat. Most light bulbs which have an incandescent filament convert electricity into some light energy plus a lot more heat energy, whilst the type of light bulbs which use fluorescent tubes create much less heat and thus require much less electrical energy to run. Typically, to produce the same amount of light energy, compact fluorescent light bulbs require only 20% of the electrical power drawn by incandescents.
Can mechanical energy power light bulbs?
Not without being converted into electrical 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.
Do carbon filament light bulbs save more energy?
Yes
Should you replace filament light bulbs with energy saving bulbs?
Yes, on an attritional basis, as the old ones burn out-
What is the difference between the energy saving light bulb and the filament bulb?
Energy saving bulbs (typically LEDs) provide higher lumens per watt compared to filament lamps.
What makes up the filament of light bulbs?
Filament of light bulbs are made up of Tungsten.
How the electric energy in in bulbs converted to light energy?
The motion of the electrons in the filament creates HEAT. The heat will excite the atoms of the filament until they emit Photons due to the jumping of electrons to higher energy shells.
Why should the filament of bulbs be thermally isolated?
Energy, in the form of electricity, causes the filament to heat up and give off light. Any energy which the filament loses by heating the bulb does not create light, and so is wasted. Thermal isolation minimizes the heat loss of the filament, and therefore reduces wasted energy.
Do incandescent bulbs contain a filament of platinum?
yes, incandescent bulbs do not contain a filament of platinum. Yes they do contain a filament called a tungsten.
What happens to the filament when light bulbs blows?
The filament breaks.
Why Led bulb are better than filament bulbs for maximum reduction in the consumption of electrical energy explain?
LEDs produce visible light and not heat. Filament bulbs use much of their energy to produce heat. The LED bulb produces more light per watt consumed.
Why gases are used in bulbs?
In incandescent bulbs, gases (other than oxygen) prolong the life of the filament. In florescent bulbs, the gas takes the place of the filament.
Is mercury used for the filament in light bulbs?
No, not in the filament. You are probably thinking of compact fluorescent light bulbs, which do contain mercury.
What is in filament of light bulbs?
tungsten
