How 3-Way Lightbulbs Work

Kategorie: Wissen und Wissenschaft
Kanal: BrainStuff
Datum: 2. August 2008, 0:17
Stufe: B1-B2 (Mittelstufe)


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A 3-way bulb contains two filaments, and these filaments have differing wattages. Depending on the setting, the filaments operate separately or together to create the appropriate amount of light. Learn more about 3-way bulbs in this HowStuffWorks podcast.