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# Direct and Alternating Current

## Differentiation between one-directional flow of a current and current that reverses direction within a circuit.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
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## Direct and Alternating Current

The difference between direct current and alternating current.

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직류와 교류의 차이

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## Direct and Alternating Current

by Doug Davidson //basic

The difference between direct current and alternating current.

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## Direct and Alternating Current

by Christopher von Nagy //basic

The difference between direct current and alternating current.

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## Direct and Alternating Current

The difference between direct current and alternating current.

0
• Video

## Direct and Alternating Current

A video discussing the differences between and the pros and cons of using AC and DC power. Video courtesy of Enerdynamics.

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## Direct and Alternating Current Quiz - MS PS

Reviews the differences between direct current and alternating current.

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• Real World Application

## War of the Currents

by CK-12 //basic

Find out how the U.S. electrical grid came to carry alternating current and why direct current might make more sense today.

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## Alternating Current vs Direct Current

Examines alternating and direct current and includes a handy comparison table.

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• Flashcards

## Direct and Alternating Current

by Ellaine Chou //basic

These flashcards are here to help you better understand middle school physical science.

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• Flashcards

## Direct and Alternating Current

by Kyle Bardman //basic