1 Answer
AC stands for **Alternating Current**. It's a type of electrical current that changes direction periodically, unlike **Direct Current (DC)**, which flows in only one direction.
In an AC circuit, the voltage (or electrical pressure) also alternates between positive and negative values. This means that the flow of electric charge reverses direction at regular intervals. The most common form of AC is the one that powers our homes, where the current changes direction 50 or 60 times per second (50 Hz or 60 Hz, depending on the country).
AC is used for most of our electrical needs because it is more efficient for transmitting electricity over long distances.
In an AC circuit, the voltage (or electrical pressure) also alternates between positive and negative values. This means that the flow of electric charge reverses direction at regular intervals. The most common form of AC is the one that powers our homes, where the current changes direction 50 or 60 times per second (50 Hz or 60 Hz, depending on the country).
AC is used for most of our electrical needs because it is more efficient for transmitting electricity over long distances.