I understand the concept of DC, but if electrons are just kind of moving back and forth in one place to produce an electric charge for AC, why do they say it’s necessary to have a path back to ground/ 0V if it’s not “moving” towards ground/ 0V?
In: 7
To control where the electrons flow. Without the path back, the electrons will look for a high conductive path to a lower potential, which likely doesn’t exist naturally in the environment in a way that serves the purpose of what you are trying to power.
Just like hanging a swing from a bar with a chain allows the swing to go back and forth through an intentional low point, rather than have you crash into the ground or get stuck in a tree branch.
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