What is AC/DC theory?

AC/DC theory encompasses the principles governing alternating current (AC) and direct current (DC) electrical circuits. AC is characterized by its periodically changing direction and magnitude, commonly used for power transmission due to its efficiency in long-distance travel via transformers. DC, on the other hand, flows in one direction with a constant magnitude and is prevalent in electronic devices like batteries and solar panels. Understanding AC/DC theory is fundamental in electrical engineering for designing circuits, power systems, and electronic devices, and for converting power between AC and DC forms using rectifiers and inverters.