How many alterations in the direction of the current flow occur in 0.10 second in a 60 Hz AC current?

Question

Quizplus · Accepted Answer

In 60 Hz AC current, the direction of current flow changes 60 times per second. Therefore, in 0.10 second, there would be 60 x 0.10 = 6 alterations in the direction of the current flow. Since each alteration involves both positive and negative half-cycles, the total number of alterations is twice the number of direction changes. Thus, there are 2 x 6 = 12 alterations in the current flow direction in 0.10 second. Therefore, the correct answer is B.

How Many Alterations in the Direction of the Current Flow