2010-05-15, 03:18 AM
What he means is:
The standard socket you plug your computer into has 3 prongs (in the US). The small flat bladed prong is "hot" -- where the electric current flows from. The long flat bladed one is "neutral." The electric current flows from "hot" to "neutral."
The round prong should be connected to ground. In normal operation, current never flows through the ground prong. It should only happen when something is wrong with the device (e.g., a wire inside your power supply comes loose and touches metal), in which case the electric current will flow out through the ground prong -- instead of through you and into the floor (possibly/likely killing you in the process).
The standard socket you plug your computer into has 3 prongs (in the US). The small flat bladed prong is "hot" -- where the electric current flows from. The long flat bladed one is "neutral." The electric current flows from "hot" to "neutral."
The round prong should be connected to ground. In normal operation, current never flows through the ground prong. It should only happen when something is wrong with the device (e.g., a wire inside your power supply comes loose and touches metal), in which case the electric current will flow out through the ground prong -- instead of through you and into the floor (possibly/likely killing you in the process).