High Voltage
Like many people from my generation, I was first introduced to the concepts of alternating current and direct current from the moniker of the iconic rock band AC/DC. It wasn’t until I reached my physics class in high school, however, that I learned the importance of these two electrical charges.
As you can probably ascertain, direct current is a charge that never changes it direction. Due to its consistency and low wattage, direct current is commonly found in low-voltage devices, especially those that are powered by batteries, which have constant positive and negative sides. Alternating current, on the other hand, reverses direction periodically and creates much more energy; it is utilized in everything from household and business electricity to an AC motor

On the pther hand,alternating current the movement of electric charge periodically reverses direction.An electric charge would for instance move forward,then backward,then forward,then backward,over and over again.