Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

About plugging things.



Why is there a ground in electric appliances. Why not just having a
positive and a negative wire. I would also like to know if both the black
and red wire are above ground or if one or both are below. Thanks in
advance to anyone who will answer.