Electromotive Force
Chandler's Encyclopedia · 1898 · p. 28
Result of a difference of electric potential, or that difference of condition between two points by which an electric current is caused to flow from one point to the other. Difference of potential is analogous to difference of level or head of water in hydraulics. Electromotive force is not force in itself, and the name does not even specify the force which determines the flow. The term electromotive difference of potential has been suggested instead. The practical unit is the volt.
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