On a USB charger, which cord is positive and which court is negative out of the red, green, white, and silver wires? There's no black wire though. - Quora
How to know which of the red, green, white, and black wires of a type-C data cable is positive, negative (ground), data positive, and data negative - Quora
On a USB charger, which cord is positive and which court is negative out of the red, green, white, and silver wires? There's no black wire though. - Quora
![electrical - How can I identify the conductors in an appliance cord with only the green wire colored? - Home Improvement Stack Exchange electrical - How can I identify the conductors in an appliance cord with only the green wire colored? - Home Improvement Stack Exchange](https://i.stack.imgur.com/14ELr.jpg)