vaihtovirtojen
Vaihtovirta, often abbreviated as AC (alternating current), is an electric current that periodically reverses direction, in contrast to direct current (DC), which flows only in one direction. The defining characteristic of AC is its cyclical nature, typically represented by a sine wave. This means the voltage and current oscillate between positive and negative values over time.
The primary advantage of AC over DC is its ease of voltage transformation. Alternating current can be
Nikola Tesla is widely credited with developing and advocating for the AC electrical system, which ultimately