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| | Define Hz - Hertz |
 | | Meaning of Hz - "Hertz", is a unit of frequency (of change in state or cycle in a sound wave, alternating current, or other cyclical waveform) of one cycle per second. |
 | | It replaces the earlier term of "cycle per second (cps)." For example, in the United States, common house electrical supply is at 60 hertz (meaning the current changes direction or polarity 120 times, or 60 cycles, a second). |
 | | The SI unit of frequency, equal to one cycle per second. |
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