Electromotive force (EMF) is the term for the voltage generated by a source such as a battery or generator in an electrical circuit.
Electromotive force (EMF) is the term that indicates the voltage generated by a source like a battery or generator in an electrical circuit. It is the electric pressure that drives the current flow through the circuit. Alessandro Volta coined the term EMF in the 1800s when he invented the first battery, known as the voltaic pile.
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