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Types of Current
There are only two types of electrical current, direct electric current and alternating current.
We abbreviate them as DC and AC respectively. Concept of DC was developed before AC. But AC becomes most popular means of generating, transmitting and distributing of electric power. The direction of the flow of direct electric current is unidirectional, means this electric current does not alter its direction during flowing. Most common examples of DC in our daily life, are the electric current that we get from all kinds of battery system. But most popular form of electrical electric current is alternating electric current or AC. AC does have some advantages over DC for generating, transmitting and distributing and that is why the electric current we get from our electric supply companies, is normally alternating current.
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