A power supply unit is a source of
either a Constant Current or Constant Voltage irrespective of the load
resistance. Power sources can be classified as either varying or non-varying,
i-e AC or DC. AC stands for Alternating Current whereas DC stands for Direct
current. Graphically speaking, the Alternating currents are those that vary in
some periodic fashion electrically and reverse polarity several times. The
voltage which causes an Alternating Current is called AC voltage. The figure
below shows the wave shape of an alternating power source.
The approach to the CSS exam and the approach to individual subjects are the main topics of this blog. Regardless of your level of experience, all required materials will be offered here. This blog will analyze past papers, examiner reports, note-taking strategies, suggested readings, and the curriculum.