Please help me with this. I am having a hard time understanding the role of displacement currents in a circus. The common knowledge is actual current is the movement of electron in a circus. Now, if there is a gap and an AC source, there would be an electric displacement field and a displacement current in that gap. But that displacement current is not the movement of electrons. Then what happen with the electrons once they reach one end of the gap? Where do they go? And what happen to the ground electrode of that circus if there is no electron to ground? I am sorry if this question seams silly to you, but this is not my strong point so please be patient and help me. Thank you!