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AC (Alternating Current) is a type of electric current that reverses its direction periodically. Unlike DC (Direct Current), where the electric charge flows in one direction, in AC, the flow of electric charge changes direction back and forth.
In most AC systems, the direction of the current reverses in a regular pattern, which is called a **cycle**. For example, in the United States, the standard frequency is 60 cycles per second, or **60 Hz (Hertz)**, meaning the current changes direction 60 times every second. In many other parts of the world, the standard frequency is 50 Hz.
AC is used in most household appliances and in power transmission because it is easier and more efficient to transport over long distances compared to DC.
In most AC systems, the direction of the current reverses in a regular pattern, which is called a **cycle**. For example, in the United States, the standard frequency is 60 cycles per second, or **60 Hz (Hertz)**, meaning the current changes direction 60 times every second. In many other parts of the world, the standard frequency is 50 Hz.
AC is used in most household appliances and in power transmission because it is easier and more efficient to transport over long distances compared to DC.