How is frequency defined in electrical terms?

In electrical terms, frequency is defined as the number of cycles per second of an alternating current (AC). This measurement is typically expressed in hertz (Hz). When we discuss alternating currents, frequency refers to how many complete waveforms occur within one second. For example, a frequency of 60 Hz means that the AC completes 60 cycles in one second.

Understanding frequency is crucial in electrical engineering and power systems, as it affects the operation of electrical devices and systems that rely on alternating current. It determines the time it takes for a waveform to repeat itself and influences how electricity is generated and utilized in homes and industries.

The other definitions provided do not accurately describe frequency. Voltage relates to the potential difference in a circuit, resistance refers to how much a material opposes the flow of current, and current measures the flow of electric charge in a circuit. While these concepts are important in the study of electricity, they pertain to different aspects compared to frequency.