Light bulb filament. Electric current passing through the tungsten filament (upper centre) has caused it to heat up and emit light.

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Size: 3206px × 4423px
Photo credit: © CHRIS KNAPTON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: bulb, electric, electrical, electricity, emitted, emitting, energy, filament, glow, glowing, heat, heated, heating, hot, industry, light, lighting, physics, technology, tungsten, wire