Named for a physicist, it's the amount of work done when 1 amp passes through 1 ohm of resistance for 1 second
The work required to produce one watt of power for 
one second, or one "watt... [DOC] [TLE] Joule - definition of joule by The Free Dictionary [PAR] 181889, English physicist, who evaluated the mechanical equivalent of heat ... 
to the work done by a force of one newton when its point of application moves 
through a ... 1.