If we have AC Current coming into our homes, then why we have different coloured wires?
In: Physics
The fact that it is AC means the current is flowing back and forth, and this often creates the confusion which is the source of your question. If the current is going both ways, why does it matter which wire is which.
The answer is that the power is coming from the black wire. The easiest way to think about it is a spring. If I hold one end of a slinky and tie the other to the wall, and I push and pull it, the wires go back and forth – but all the power is coming from the end I am holding.
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