Answered

Direct current, DC, flows in a _________ direction while alternating current, AC, the direction of flow ___________. A) single, is unidirectional B) constant, periodically reverses C) opposite direction, is multiple D) periodically reversing, is constant

Answer :

AlpenGlow
The flow of Direct current (DC) is constant and flows in one direction. Most digital electronics make use of DC. Alternating current (AC) periodically flows in reverse and is mostly used to deliver power to houses, buildings and the like. With that alone, you can already rule out A, C and D. 

The answer would then be B. constant, periodically reversing. 

Answer:

B

Explanation:

I just had it on USA Test Prep

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