electromotive force

Also known as source tension, emf, source voltage

scalar physical quantity homogeneous to a voltage, expressing the modulus of the force exerted on a charge in an electric field

AI overview

Electromotive force (EMF) is a physical quantity that measures the strength of the force pushing electric charges through a circuit, expressed in units of voltage. It matters because it determines how much energy is available to move electrical charge and power devices like batteries and generators.

AI-generated from the Wikipedia summary — may contain errors.