In Physics and Electrical Engineering
- An electrical filament in an incandescent light bulb, used to emit light, or in hot cathodes of fluorescent lamps and vacuum tubes as a source of electrons, or in vacuum tubes, to heat an electron-emitting electrode
- Similarly, a thin heating element
- Current filament
- Filament propagation, diffractionless propagation of a light beam
Read more about this topic: Filament
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