What does the ampere measure?

The ampere is the unit of measurement for electric current. It quantifies the flow of electric charge in a circuit. One ampere is defined as the flow of one coulomb of charge per second, which allows for a clear understanding of how much electrical charge is flowing through a conductor. This measurement is crucial in electrical engineering and physics, as it directly affects the behavior and functionality of electrical devices and systems.

In contrast, voltage measures the electric potential difference between two points, while resistance quantifies how much a material opposes the flow of electric current. Magnetic field strength, on the other hand, refers to the intensity of the magnetic field generated by moving charges or magnetic materials. Each of these measurements is essential in the study of electricity, but they represent different aspects of electrical phenomena.