Light bulb filament

Light bulb filament

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Caption: Light bulb filament. Coloured scanning electron micrograph (SEM) of a light bulb filament. The coiled filament glows when it is heated to white- hot by an electric current (thermal radiation).

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Keywords: coil, coiled, coloured, curve, curved, electric, electrical equipment, electricity, energy, false-colour, false-coloured, filament, heat, light, light bulb, lightbulb, resistance, scanning electron micrograph, scanning electron microscope, sem, technological, technology, thermal radiation, tungsten, white-hot, wire

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