What are the two types of electrical current?

The two types of electrical current are alternating current (AC) and direct current (DC). AC is characterized by the flow of electric charge that periodically reverses direction. It is commonly used in homes and businesses because it can be easily transformed to different voltages, making it efficient for long-distance transmission.

On the other hand, DC is the type of current where the electric charge flows in a single direction. It is frequently found in batteries and electronic devices as it provides a constant voltage. Understanding the distinction between AC and DC is fundamental in the study of electricity, as these currents apply to various applications in everyday technology and electrical systems.

The other options mention terms or concepts that do not accurately categorize the types of electrical current. Static electricity refers to the build-up of electric charge on a surface rather than a flow of current. High voltage and low voltage describe the potential difference rather than the type of current flow. Current and static current mix up dynamic movement of electrons with a state of charge. Thus, recognizing AC and DC is essential for anyone working with electrical systems.