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
You don’t need a path to ground. Consider a 3 wire delta system. No grounds or neutral there for current flow, aside from grounds for protection systems of course.
The voltage will oscillate back and forth, and so will the current. But there will also be a net VA power flow in one direction, based on the difference in potential between the wires.
Latest Answers