Abbreviation for electromotive force, the voltage generated by an electric source like a battery or generator.
Coined in the 19th century during the development of electrical theory, from electro- (relating to electricity) and motive force. The term reflects early understanding of electricity as a force that moves charges.
Despite its name, EMF isn't actually a force but a potential difference measured in volts - a classic example of how scientific terminology sometimes preserves historical misconceptions even after our understanding improves.
Complete word intelligence in one call. Free tier — 50 lookups/day.