Rectification is a process by which an alternating current is made
usable for a direct current requirement. Thus, by rectification,
alternating current is converted to direct current using equipment known
as a rectifier. Thus, rectification can be defined as a process of converting
alternating current (A.C) to Direct current (D.C). In this process the
flow of current in only one direction is permitted while in the other
direction is resisted. This means that in an alternating current (A.C)
the positive component of the current is only permitted to pass whereas
the negative is resisted. This also happens to be the working principle of a rectifier.