What is voltage defined as?

Voltage is understood as electromotive force, which can be described as the driving force that pushes electric charges through a circuit. It is essentially the potential difference between two points in an electrical circuit, providing the necessary energy to move electrons. Understanding voltage is crucial because it establishes how much energy is available for electrical work, which is vital in determining the performance of electrical systems.

In the context of the other options, electrical work refers to the energy transferred when electric charges move through a conductor, which is related to voltage but not the definition itself. Current flow pertains to the movement of electric charge carriers, like electrons, through a conductor, and while it is influenced by voltage, it is not what voltage is defined as. Magnetic force is associated with the interaction of magnetic fields and does not pertain to the definition of voltage in electrical terms. Therefore, the definition of voltage as electromotive force accurately encapsulates its role in electric circuits.