Conductive coupling happens when two wires touch or are linked by a metal connection. This can lead to unwanted electrical signals causing interference.

Capacitive coupling: Imagine two electrical wires separated by something that doesn't conduct electricity, like the air or plastic. When one of the wires carries electrical power, it creates an invisible electric force field that can reach the other wire through the non-conductive stuff. This causes the second wire to have electricity on it too.

Direct coupling: Direct coupling, also called galvanic coupling, is when two electrical wires are directly connected, like with a metal wire. This direct connection allows electricity to flow between the wires. This is common when dealing with a lot of electricity, like in power grids and systems that control motors.