Joule's name is common in everyday life as the SI unit of energy found on food packaging. 1 joule = 0.24 calorie.James Prescott Joule (1818-99) was the son of a wealthy Salford brewer. He became ...
is a measure of energy, per unit of charge, transferred between two points in a circuit. A potential difference of 1 volt means that 1 joule of work is done per coulomb of charge.