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It was actually Irving Langmuir (of General Electric), also an American. Edison's incandescent lamp used a carbon filament, as did that of his contemporary, England's Joseph Swan who got there before Edison (who invented a longer lasting carbon filament).
William Coolidge improve on Langmuir's filament by making it longer (the familiar twisted shape) and brighter.
Humphrey Davy had invented a platinum filament way back in 1809 that worked, but was too expensive for commercial use. Those that followed him failed to cotton on to the use of a metallic filament and went for carbon instead.
What Tomas Edison can claim is the 'development' of a commercially useful light bulb using a carbon filament - though this was superseded by the tungsten filament not long after.
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Which material is used for for filament in tungsten lamp?
i believe it is cadnium.
Which element is used in the filaments in incandescent lamps?
Tungsten.More informationExperiments were made with different materials to use as the filament, including natural fibres, pure metals and alloys of different metals, to find the material which had the longest life whilst glowing brightly enough to give out visible light. The metal Tungsten was found to be the best, because of its high melting point (almost 3700 K) and good resistance to electrical current.
What element is in an incondescent light bulb filament?
Tungsten.
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 is the metal of a light bulb made of?
The wire inside of an electrical light bulb is called a "filament". The word filament comes from the Latin word "filum" which means "thread". In various fields there are many different types of filaments with different uses, however the ones inside of light bulbs are made out of tungsten and work by super-heating by passing electricity through it.
What is lamp types?
There are two types of lamps the tungsten halogen lamps and incandescent lamps. Tungsten Halogen Lamps are similar to incandescent lamps and produce light in the same manner from a tungsten filament; however the bulb contains a halogen gas (bromine or iodine) which is active in controlling tungsten evaporation, whereas the incandescent lamp suppresses tungsten evaporation.
Difference between tungsten lamps and carbon lamps?
tungsten lamp has got inert gas argonsometimes iodine is added to improve intensity carbon filament produces less light than tungsten lamp but it radiates much less energy in the form of heat waves
What elements are used in light bulbs?
Any noble gas except helium, or beryllium used in WWII is now dangerous or tungsten, copper, zinc, nickel, fluorine, mercury, titanium, and carbon Tungsten Filament is used in Incandescent Lamps and Fluorescent Lamps Tungsten and Argon are used in incandescent light bulbs. Tungsten (chemical symbol 'W', 74)
Suggest the physical property that can render tungsten suitable for making filament of tungsten light bulb?
The physical property that can render tungsten suitable for making filament of tungsten light bulbs is incandescence.
How do tungsten-halogen bulbs generate light?
Inside a tungsten-halogen bulb, electrons flow through a tungsten filament. The filament heats up and emits light.
Which material is used for for filament in tungsten lamp?
i believe it is cadnium.
Light bulb filament?
What is Tungsten
What is in filament of light bulbs?
tungsten
Why do lightbulbs burn out?
They burn out from 1) the rapid heating and cooling of the Tungsten filament, and 2) from the tungsten atoms being released from the metal filament by way of the extremely high temperatures. Eventually the tungsten metal fails and the filament breaks.
What is the filament in the light bulb called?
Tungsten.
What is used as a filament in a bulb?
I believe it is tungsten.
What is the filament inside a light bulb?
Tungsten
