Hey guys I have a few simple questions: So on a light bulb I have connected to my lamp it says "120 V" and 25 Watts. From the outlet we receive 120 V. If that is true is the light bulb using the maximum E.M.F. the outlet can provide (120V)? and therefore it is using a very low current (p=vi = 25=120i i=25/120 A) Is that right? if that is right, do all things made in US for example use 120 V? Or if we plug something in the max they can use is 120 V but the outlet provides anything below that as well. What is the maximum CURRENT our home outlets can give?... (Is there a maximum)? LASTLY There is always a ground or neutral wire, i know it is there to prevent consequences from short circuits but when does the current flow through this wire? What causes the current to start going into the neutral wire? At what point does the current "know" to start flowing through the neutral wire? If im not being clear please tell me.