Difference Between 12 2 12 3 Wire

Wire vs doityourself hours What's the difference between 10 2 wire and 10 3 wire? 12-2 wire vs 12-3 wire

12-2 Wire vs 12-3 Wire | DoItYourself.com

What's the difference between 10 2 wire and 10 3 wire?

12-2 Wire vs 12-3 Wire | DoItYourself.com