I need to buy some electrical wire for my car, does it matter what color the copper wire is inside of ( i.e. black,yellow,red,green,blue,etc.)
Wire comes in different gages, as well as colors. But if it is copper it will work.
Well, keeping your colors straight will definitely make your wiring easier to understand later on. Red should got to the positive side, black to the negative. Any other colors are more or less up to you. What actually matters more is choosing the right gage of wire for the job. If your wire is too thin for the current going through it, it will melt quite quickly and possible start a fire. Make sure you know what gage you need before you start, and don't try to go cheap. Hope this helps!
The color of the wire indicates wire gage
Color in electronics wire does not matter. It is simply so you can trace that the blue wire goes from here to there. Generally the Black is ground and Red is supply. In house AC wiring the black is hot, white is ground or neutral and green is earth or frame ground.
