How to Identify Positive & Negative Wires: AC, DC, & More
Battery Cable Silicone Soft Cable Red Black Color With Terminal Connected Positive Negative Wire 20/30/50/100cm 1m 0/2/4/6/8awg - Connectors - AliExpress
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Cable Wire With Connection For Electronic Devices On White Background. Black Wire For Negative And Red Wire For Positive. Stock Photo, Picture And Royalty Free Image. Image 50301372.
Which two of these wires are the positive and negative? I assume it's the red and black but I want to be sure. It's a mini usb : r/AskElectronics