Alternate Current/Direct Current?

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SUMMARY

Alternating Current (AC) and Direct Current (DC) are two fundamental types of electrical current. DC maintains a constant polarity, allowing current to flow in a single direction. In contrast, AC alternates its polarity, reversing the direction of current flow, typically at a frequency of 60 Hz in the United States. Understanding these differences is essential for applications in electrical engineering and household power systems.

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  • Basic understanding of electrical concepts
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Hello;

What is alternate current and direct current? (AC and DC)

Thanks.
 
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With direct current, the polarity remains the same. In other words the current always flows in one direction.

With alternating current, the polarity alternates. In other words the direction of current flow alternates between flowing one direction and the other. With typical house current this happens at 60 cycles per second in the U.S.
 
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