electromotive force

Electromotive force (EMF) is the energy provided by a power source, like a battery, to move electric charges through a circuit. It's often described in volts and represents the maximum potential difference between two points in a circuit when no current flows. In simpler terms, EMF is what "pushes" electrons, enabling electricity to flow, powering devices like your phone or lights. EMF can result from chemical reactions in batteries or mechanical motion in generators, illustrating the connection between energy conversion and electrical power.