On an apliance with a plug having 1 fat prong and 1 not so fat,the fat one would go to the white wire right I hope

on an apliance withe a plug having 1 fat prong and 1 not so fat,the fat one would go to the white wire right i hope
I think I understand what you are saying/asking.
Can you maybe write this so that folks can understand what you are saying?

Pretty basic wiring. Look at an outlet . White, the neutral, light screw, is the "Fat " side. Hot, black -usually, darker screw, is the "not so fat ". Get a book out of the library to learn about wiring

120V appliance? You are describing the receptacle? Receptacle is what you plug a cord cap (male plug on the end of the cord) into.

This is a 15A 120V duplex receptacle
http://i.ebayimg.com/t/Pass-Seymour-3232WCP-15A-Duplex-Receptacle-Outlet-White-PK10-/00/$(KGrHqMOKjUE2zMhJN-WBN3cHHn19g~~0_35.JPG

In order for us to give you an answer so things don't... go wrong, I'm making sure we are talking about the same thing. Please don't think I'm talking down to you, electrical mistakes have dire consequences sometimes.

Looking at the face of the receptacle with the round hole down.
The wider slot on the left side of the receptacle is connected to the white/silver screws, The narrower slot on the right is connected to the brass screws. And the round (actually Ushaped, a U ground) hole is the ground

White silver is the neutral/white wire, brass is the red or black wire, USUALLY. But without a voltage tester, I am not going to say that it is.

Wire color is NOT an ironclad guarantee that any wire is what it SHOULD be