Question

Two students are discussing electricity that has a frequency of 60 Hz. Student A says that this type of electricity is referred to as AC. Student B says that in this type of electricity, the electrons flow in only one direction. Which of the following statements is correct?

A. Only student A is correct
B. Only student B is correct
C. both of the two students are correct
D. Neither of the two students is correct

Answer 1

The answer is only student A is correct

A 60Hz electrical frequency means that the electrical wave being transmitted completes 50 sinusoidal rotations in a minute. A sinusoidal rotation can only be found in an AC environment. A DC does not have a sinusoidal wave. Electric flow in AC typically reverses itself and does not flow in one direction. In most power distribution systems, the voltage reverses itself 50 or 60 times per second.