How many times does an AC current change direction in a single minute?
A)30
B)60
C)120
D)7,200

Question

Quizplus · Accepted Answer

AC (Alternating Current) typically changes direction 60 times per second in a standard 60 Hz system, which means it would change direction 3,600 times in a minute. However, since the question asks for the number of changes in a single minute and AC changes direction twice in each cycle (once to positive and once back to negative), you have to double that number, resulting in 7,200 changes per minute.

How Many Times Does an AC Current Change Direction in a Single