Why does my outlet have 2 black and 2 white wires? - Quora

I want to add a switch right next to an outlet so I can turn it on and off. Are there any disadvantages or problems with doing this? - Quora

How to wire a light fixture with only black and white wires - Quora

What is the 12-3 Romex electrical wire used for? - Quora

2 white and one black wires in an outlet : r/electrical

What is the gray wire coming from the ceiling? - Quora

Old outlet has 2 black wires and 2 white. Is it safe to connect two white and two black under one screw with the new outlet? Thank you! : r/electrical

Is there a difference between using a double gang extension block

Replaced 3-way switch same way as the old, but now the other lights on same breaker won't turn on. Three black wires, one red, no copper. I've identified the live black wire

Why do some wall plugs have a specific orientation where others doesn't matter? - Quora