Electromotive Force
Electromotive Force (EMF) is a measure of the energy provided by a power source, such as a battery or generator, to move electric charge through a circuit. It is expressed in volts and represents the potential difference that drives current flow. EMF can be generated through various methods, including chemical reactions in batteries or electromagnetic induction in generators.
In a circuit, EMF is crucial for overcoming resistance and ensuring that electrical devices operate effectively. It is important to note that EMF is not a force in the traditional sense but rather a potential energy difference that facilitates the movement of electrons within the circuit.