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Electricity and Magnetism
Tungsten Filament in Incandescent Light Bulbs
Tungsten filaments enable incandescent bulbs to glow brightly by withstanding extreme heat
30 Jan 2026
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Why is tungsten specifically used as the filament material in incandescent light bulbs?
Because tungsten is the cheapest metal available for filaments
Because tungsten emits light without needing to be heated
Because tungsten has a very high melting point allowing it to glow brightly without melting
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