How are Hertz measured in relation to electricity?

Hertz (Hz) is a unit of measurement that denotes the frequency of an electrical signal or wave. Specifically, it measures the number of cycles that occur in one second. Therefore, saying that Hertz are measured as cycles per second accurately describes this concept. In the context of electricity, this measurement is crucial for understanding alternating current (AC) and how frequently the current changes direction.

In practical terms, when you hear a frequency specified in Hertz, it is telling you how many times the electrical wave oscillates in one second. For example, in the United States, the standard frequency for electrical outlets is 60 Hz, meaning the electrical current changes direction 60 times each second. This frequency is an essential aspect of electrical systems, affecting everything from lighting to the operation of appliances.

The other options reflect different electrical parameters: voltage (the pressure of electrical energy), amperes (the measure of current), and ohms (the resistance). Each of these plays a critical role in electrical systems but does not pertain to the measurement of frequency, which is distinctly captured by Hertz.