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That depends on the bulb, and the time frame. The first bulbs had carbon filaments. Certain bulbs used in control devices have iridium filaments. Modern grocery store incandescent bulbs have tungsten filaments.
Tungsten, because of its very high melting point.
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What is the function of the glass bulb in a bulb?
On a standard incandescent light bulb, the glass traps a set of gases around the filament that help keep the filament from burning up quickly.(The filament is the part that does the actual glowing inside the glass.)It also keeps the oxygen in the air that we breathe away from the filament. Oxygen is one of the gases that will vastly accelerate the destruction of the filament.(Also, the glass keeps anything from touching the What_is_the_purpose_of_the_glass_on_a_light_bulbconductors inside.)The glass can also act as a filter to remove any ultraviolet radiation caused by certain types of light bulb's ("lamp's" technically) methods of creating a arc to produce light.When specially treated, the glass can also be used to break up the light rays to cause more diffused source of light. (Think "Soft White" to get an idea.)
Which wire used for ordinary light bulb?
In most home wiring circuits, the black wire is used to power a light bulb. The other wire is white and is called the neutral conductor.
What experiments did Thomas Edison conduct with electricity?
Thomas Edison invented stuff .EX:first light bulb
What is the difference between a 100watt and a 75 watt bulb?
The amount of light produced and the amount of power consumed. A watt is a unit of power and electrical power is determined using the formula: P = I2*R , Where P is power, I is amps and R is resistance. But using Ohm's law ( V = I * R) the following can be obtained: P = V2/R , Where V is voltage. In US house holds the standard voltage is ~120V, changing the resistance of the filament of the light bulb will change the amount of power consumed and therefore the amount of light produced. The higher the wattage the lower the resistance of the filament. Filaments are used in standard incandescent light bulbs and not in fluorescent tubes or LED fixtures.
Can a 220V light fixture be used in the US?
Yes, you can easily use it. Just install it as you would any other 120 volt light fixture and change the bulb from a 240 volt bulb to a 120 volt bulb. It will work just fine.
Which element is used in a light bulb filament?
Tungsten is an element. It is used in bulbs
What element is used in a light bulb as a filament?
Usually tungsten.
What element is used as a light bulb as a filament?
Usually tungsten.
What is a light bulb filament?
the filament is the metal peice in a bulb that glows.Tungsten is most often used in a lightbulb.
Which element is used in which element is used in light Bulbs as a filament?
Tungsten
What are some of the components in a light bulb?
The bulb and the filament are the two main components of an incandescent light bulb.
What element is used for a filament for light bulbs?
Tungsten
Why did Thomas Edison recreate the light bulb?
Edison perfected the light bulb by refining the filament. He used tungsten
What is the purpose of the light bulb stem?
It is used to support the filament assembly.
What is element is used in light bulbs as a filament?
Usually tungsten.
In a bulb noble gas argon is used . why is argon is used instead of air in the light bulb?
It won't burn the filament.
Why are only inert gases like Argon used in an electric light bulb?
If the lighter bulb had oxygen in it , the hot glowing filament would react with the oxygen, thereby destroying the filament. If the filament is destroyed, then there is no light. So an inert gas is used, because it will not react with the heated glowing filament. Hence the filament stays alight.
