what is the difference between the two wires in an AC circuit, if the current is constantly switching direction? E.g. why do they say to always put the switch on the “hot” side?
In: Engineering
One of the wires switches from trying to push to trying to pull electrons. The other wire is by itself often inert. Those are hot and neutral respectively. There is also the possibility to use another hot wire that’s always in the opposite phase of the push-pull cycle as the other wire, which gives you double the voltage (that’s how 240V outlets work in the USA).
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