What is Reversed Polarity? And is it Dangerous?

What is Reversed Polarity? And is it Dangerous? which slot is hot on an outlet The left slot is called neutral, the right slot is called hot and the hole below them is called ground The prongs on a plug fit into which slot do you put fabric softener in If American plug: the narrow prongslot is hot But check Wikipedia to be sure

which slot is for detergent Instead, the hot slot supplies the voltage required to draw current, and when a plug is inserted into the socket, the energy flows in from the hot slot, through