Usually tungsten.
Tungsten is the most common today.
Tungsten is an element. It is used in bulbs
Usually tungsten.
the filament is the metal peice in a bulb that glows.Tungsten is most often used in a lightbulb.
Tungsten
The bulb and the filament are the two main components of an incandescent light bulb.
Tungsten
Edison perfected the light bulb by refining the filament. He used tungsten
It is used to support the filament assembly.
Usually tungsten.
It won't burn the filament.
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.
The original Edison light bulb used a carbon based filament, later a metallic filament (tungsten) was used to increase the life of the bulb. Today the government has mandated that a fluorescent type bulb be used