Usually tungsten.
Tungsten is an element. It is used in bulbs
In the old style filament lightbulbs it was tungsten (wolfram).
Tungsten is commonly used as the filament in incandescent light bulbs because of its high melting point and durability.
The material used in the construction of a light bulb filament is typically tungsten.
A light bulb typically consists of a filament, which produces the light when electricity passes through it, and a glass bulb enclosing the filament to protect it from damage and to contain the inert gas (such as argon or nitrogen) that helps prevent the filament from burning. The bulb also has a base that connects the light bulb to the electrical circuit.
The filament in a light bulb is typically made of tungsten, due to its high melting point and resistance to heat. Other materials, such as carbon or other metals, can also be used in some types of light bulbs.
Tungsten is the element commonly used to make light bulb filaments. Tungsten has a high melting point, allowing the filament to heat up and emit light efficiently without burning out.
Tungsten
Argon is used in light bulbs because it is an inert gas, which means it does not react with the filament or the glass envelope of the bulb. This helps to extend the life of the bulb by preventing the filament from degrading. Additionally, argon helps to reduce the rate of evaporation of the filament, leading to a longer-lasting bulb.
Thomas Edison is credited with inventing the first practical incandescent light bulb filament in 1879. He used a carbonized bamboo filament that gave the bulb a longer-lasting and brighter light compared to previous designs.
Edison perfected the light bulb by refining the filament. He used tungsten
It is used to support the filament assembly.