When you need a multimeter for testing electrical equipment around the home, it's vital to know what all those symbols around ...

An explanation of the difference between direct and alternating current. The clip includes a short historical outline of the work of Thomas Edison and Nikola Tesla. This is followed by an ...

But multimeter symbols and their meanings can be ... to flow from a source and is supplied in both DC (direct current) and AC ...

Direct current, or DC, is a type of electrical current that only flows in one direction. In contrast to alternating current, or AC, which, depending on the supply's frequency, switches direction ...

An explanation of the difference between direct and alternating current. The clip includes a short historical outline of the work of Thomas Edison and Nikola Tesla. This is followed by an ...