<P> An incandescent light bulb , incandescent lamp or incandescent light globe is an electric light with a wire filament heated to such a high temperature that it glows with visible light ( incandescence ) . The filament , heated by passing an electric current through it , is protected from oxidation with a glass or fused quartz bulb that is filled with inert gas or evacuated . In a halogen lamp , filament evaporation is slowed by a chemical process that redeposits metal vapor onto the filament , extending its life . The light bulb is supplied with electric current by feed - through terminals or wires embedded in the glass . Most bulbs are used in a socket which provides mechanical support and electrical connections . </P>
<P> An incandescent light bulb , incandescent lamp or incandescent light globe is an electric light with a wire filament heated to such a high temperature that it glows with visible light ( incandescence ) . The filament , heated by passing an electric current through it , is protected from oxidation with a glass or fused quartz bulb that is filled with inert gas or evacuated . In a halogen lamp , filament evaporation is slowed by a chemical process that redeposits metal vapor onto the filament , extending its life . The light bulb is supplied with electric current by feed - through terminals or wires embedded in the glass . Most bulbs are used in a socket which provides mechanical support and electrical connections . </P>
what is the name of the wire inside a bulb
what is the name of the wire inside a bulb
filament
filament