What term describes the number of cycles of AC completed in one second?

What term describes the number of cycles of AC completed in one second?

• A. Frequency
• B. Wavelength
• C. Phase
• D. Amplitude

Answer: (A)

Frequency is the number of complete cycles an AC waveform makes each second, measured in hertz. This directly answers the question, since it quantifies how often the waveform repeats per second—for example, 60 Hz means 60 cycles per second, and 50 Hz means 50 cycles per second. The other terms describe different aspects: wavelength is the spatial distance between repeating points on the wave, phase is the relative alignment of two waveforms or points within a cycle, and amplitude is how far the wave deflects from zero.

Frequency is the number of complete cycles an AC waveform makes each second, measured in hertz. This directly answers the question, since it quantifies how often the waveform repeats per second—for example, 60 Hz means 60 cycles per second, and 50 Hz means 50 cycles per second. The other terms describe different aspects: wavelength is the spatial distance between repeating points on the wave, phase is the relative alignment of two waveforms or points within a cycle, and amplitude is how far the wave deflects from zero.