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Electrons do not know color codes. They flow as potential is applied [voltage] from positive to a more negative potential. Therefore the color code applies to humans that can read the color code. The COLOR CODE while not universal applies to weiring whereby if you start at the source with one color that color must remain constant till the end of the circuit Reason being that if you branch in the middle you will know which wire you are working with and its use and potential. Most county have their own color code some follow a set of protocols some do not except it must follows a color code. I may add that passive components have a recognized and well set color code to recognize the component visually by the color code.

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16y ago

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