What is traveling across the neutral wire in your typical household wiring if the load is using the electrons?

Question

I understand basic electricity in that electrons are flowing to energize whatever is on the line, say a light bulb, but in order for it to work you need to complete the circuit, why? What is traveling from the light bulb back to the source over the neutral wire?

In: Engineering

Answer 1

This is a great explanation. Thank you.