Induced electromotive force (EMF)

Induced electromotive force (EMF) is the electrical voltage generated when a magnetic field and a conductor move relative to each other, or when the magnetic field around a stationary conductor changes. This change causes electrons within the conductor to move, creating an electric current without needing a battery. Think of it as nature’s way of converting changing magnetic environments into electrical energy. This principle underpins many electrical devices, like generators, where mechanical energy is transformed into usable electricity through movement in magnetic fields.