Question

Какое явление лежит в основе определения еденицы силы тока?

Answer 1

The Phenomenon Behind the Definition of Electric Current

The phenomenon that lies at the foundation of the definition of electric current is the movement of electric charges through a conductor. Electric current is the flow of electric charges, typically carried by electrons, in a closed circuit. It is measured in units called amperes (A).

When a potential difference, or voltage, is applied across a conductor, it creates an electric field that exerts a force on the electric charges within the conductor. This force causes the charges to move, creating a flow of current. The movement of charges is facilitated by the presence of free electrons in conductive materials.

The definition of electric current is based on the rate of flow of electric charges. One ampere of current is defined as the flow of one coulomb of charge per second. A coulomb is a unit of electric charge, and it is equivalent to the charge of approximately 6.24 x 10^18 electrons.

In summary, the phenomenon behind the definition of electric current is the movement of electric charges through a conductor when a potential difference is applied. This movement of charges creates a flow of current, which is measured in amperes.