Home » Alternating Current » 4 » a The current in an AC circuit completes a cycle in 0.1 second. So the frequency is: a. b. 10 Hz c. 100 Hz d. 1000 Hz Your answer "a" is not correct. "b" is the right answer. The frequency is the reciprocal of the period. 1 / 0.1 = 10 Hz. Next |