Finally, someone explained it fast and easily without prongs or mulitmeters, I have been watching videos for a week and even purchased a multimeter, today I spent 3 hours looking for an answer on AC power adaptors which one is hot and neg and found answer hear. Thank you.
Thank you so much. I tried to change my plug head to a three-pin and short circuited my house. I thought I needed to throw my light away. Now I will try it again.
Thank you so much! short, sweet and to the point! I watched at least 7 videos before I found yours and now that I have, I can replace the cut cord on my pedestal fan. Ty! Ty! Ty!
i so learned this i always wondred if it was a standard my fear was ribbed would be hot and then the next company would make their ribbed newtral.thanks
You may need to buy a new plug, cut the wire and rewire a the new plug. You should be able to find them at the depot. Pretty straight forward, just identify the hot and attach it to the thin prong screw, neutral to wide prong screw and ground to the ground screw. Hope this helps.
Hey there, I have an antique, hot shaving cream machine and I am trying to wire up the heater on it and I don't know which is neutral and I'm scared if I attach the wiring I might burn the motor out. How can I tell?
Is the casing metal? The casing should be ground, with multimeter set to ohms resistance, put one leed on the casing and the other lead on each wire. One wire should show a resistance reading meaning it's the negative. The other should show 1, meaning their not connected. That would be the positive. This is my theory..
