Chemistry, 19.09.2019 13:30, Renabelle6350

Which best compares ac and dc?
ac flows in one direction, and dc repeatedly switches direction.
dc flows in one direction, and ac repeatedly switches direction.
ac is used only in generators, and dc is used only in motors.
dc is used only in generators, and ac is used only in motors.

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Which best compares ac and dc?
ac flows in one direction, and dc repeatedly switches directio...