Voolupöördeid
Voolupöördeid refers to phenomena in electrical engineering and physics where the direction of electric current or magnetic flux reverses. This concept is particularly relevant in alternating current (AC) circuits, where the current naturally oscillates between positive and negative values. In such circuits, the term describes the instances where the current crosses zero and begins to flow in the opposite direction.
Beyond simple AC circuits, voolupöördeid can describe more complex scenarios. For example, in the study of plasmas,
In power electronics, controlled voolupöördeid are essential for various devices. For instance, in inverters that convert