Electromotive Force Definition (EMF)

Electromotive force is the electric potential generated by either a electrochemical cell or a changing magnetic field. It is also known as voltage. It is electrical action produced by a non-electrical source, such as a battery (converts chemical energy to electrical energy) or generator (converts mechanical energy into electrical energy). Although the term contains the word force its not akin to a force in physics that would be measured in newtons or pounds.Electromotive force is commonly denoted by the acronym emf, EMF or a cursive letter E.The SI unit for electromotive force is the volt.