töltésáramlás

Töltésáramlás is a Hungarian term that translates to "charge flow" or "current flow" in English. It refers to the movement of electric charge, which constitutes an electric current. This phenomenon is fundamental to electricity and is observed in various forms, from the flow of electrons in metallic conductors to the movement of ions in electrolytes or plasmas.

The concept of töltésáramlás is described by Ohm's law, which relates the current (I) to the voltage (V) across a conductor and its resistance (R) as I = V/R. In simpler terms, a higher voltage difference drives a greater charge flow, while a higher resistance impedes it. The SI unit for electric current, and thus for töltésáramlás, is the Ampere (A), defined as one Coulomb of charge passing a point per second.

Understanding töltésáramlás is crucial in many fields, including electrical engineering, physics, and chemistry. It is the basis for the operation of countless electrical devices, from simple light bulbs to complex microprocessors. The direction of conventional current is defined as the direction of positive charge flow, although in most metallic conductors, the actual charge carriers are negatively charged electrons moving in the opposite direction. The study of töltésáramlás encompasses both direct current (DC), where charges flow in one direction, and alternating current (AC), where the direction of flow periodically reverses.