Which gas is used in light bulbs?


The gas that is used in some light bulbs is generally known as an inert gas and it could either be argon or neon. The gas used could also be xenon and such bulbs are known as incandescent bulbs. These kinds of bulbs are quite good because their bulb filaments are said to last longer.
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What Gas Is Used in Light Bulbs?
The first incandescent lamps used carbon-bamboo filaments to "incandesce" in resistance to an electrical current. The bulb that held the filament was made of hand-blown glass. As physicists worked with the insides of the light bulb, developing long-lived... More »
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The electric light bulb was invented in 1879 by Thomas Alva Edison. It has a tungsten filament as the light emitting media and is specially manufactured by precision machines to give the correct cross sectional area. The tungsten filament is coiled to give a very high resistance and is encased in a glass envelope. This glass envelope or bulb is filled with a low pressure inert gas such as nitrogen or argon.
Low pressure neon, xenon, krypton and argon are the gases used in light bulbs. Argon which is commonly used prevents the tungsten filament from burning while neon makes all those flashy lights often seen in the street lighting and some non-energy saving bulbs. The first incandescent lamps used carbon-bamboo filaments to flame in resistance to an electric current.
Light bulbs use argon and mercury vapour to produce light. Mercury atoms are bombarded by electrons produced from the electrodes of the bulb leading to their excitation. This process leads to the emission of ultraviolet photons, which hit the phosphor coating of the bulb causing illumination.
At first, light bulbs were made with a vacuum inside them. Later, it was discovered that filling the bulb with inert gases such as nitrogen and argon slows down evaporation of the filament which earlier evaporated very first since the gases do not react with other elements.
Inside a bulb there are gases such as argon, nitrogen, or krypton so that the filament doesn't catch fire. At the centre of the lamp is a tungsten filament. Earlier bulbs did not contain any gases, they had vacuums.
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Krypton light bulbs are bulbs that use krypton gas,which results in high efficiencies and longer lamp life. Krypton gas possesses a heavier molecular structure ...
A halogen light bulb is a type of luminous lamp that has a tungsten string contained within an inert gas and a small amount of a halogen for instance bromine or ...
The light bulb can be called by many names such as incandescent light bulb, incandescent lamp, or an incandescent light globe. It is described as an electric light ...
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