Think about a circuit. If the lamp only has one conductor led to it, then the voltage varies from the negative peak value to the positive peak value 50 times/second. No current flows, though - only the potential that would cause current if a circuit existed.Why is there a need for a return conductor in AC??
Apples and oranges: radio waves and sound waves can travel through the air, whereas AC current (at typical usable levels) cannot.As I read this, I am also listening to the radio. The signal I get it AC, right? No wires at all between me and the station.
by Jake Hertz
by Jake Hertz
by Jake Hertz
by Jake Hertz