What do the yellow and black wires in a home telephone jack do?

Kategorie: Wissen und Wissenschaft
Kanal: BrainStuff
Datum: 14. Mai 2014, 17:54
Stufe: B1-B2 (Mittelstufe)


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It only takes two wires to connect a phone, but most house wiring contains four wires. Check out this HowStuffWorks podcast to learn why. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers