Electrician Journeyman Knowledge QuizShare:FacebookPinterestTwitterMailWhat is the standard frequency of alternating current (AC) used in the USA?60%Next Correct Incorrect The 60 Hertz frequency means the current changes direction 60 times per second. What is the standard frequency of alternating current (AC) used in the USA? 100 Hertz 60 Hertz 120 Hertz 50 Hertz 60%
