Maintenance Technician Practice Test 2025 - Free Maintenance Technician Practice Questions and Prep Guide

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An electrical 60 Hertz (Hz) sine wave will have a _________ than a 50 Hz wave.

longer period

shorter period

A 60 Hertz sine wave has a frequency of 60 cycles per second, while a 50 Hertz sine wave has a frequency of 50 cycles per second. The period of a wave is the time it takes to complete one full cycle, and it is inversely related to frequency. This relationship can be described by the equation:

\[ \text{Period} = \frac{1}{\text{Frequency}} \]

For a 60 Hz wave, the period is:

\[ \frac{1}{60} \text{ seconds} \]

For a 50 Hz wave, the period is:

\[ \frac{1}{50} \text{ seconds} \]

Since the frequency is higher for the 60 Hz wave, its period is shorter compared to the 50 Hz wave. Therefore, the correct choice indicates that the 60 Hz wave has a shorter period than the 50 Hz wave, reflecting the direct inverse relationship between frequency and period.

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larger amplitude

smaller amplitude

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