PHYSICAL LAYER AND TRANSMISSION MEDIA
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Frequency is the number of cycles per second and is expressed in Hertz.
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Frequency is the rate at which current changes direction per second. It is measured in hertz (Hz), an international unit of measure where 1 hertz is equal to 1 cycle per second. Hertz (Hz) = One hertz is equal to one cycle per second.
Detailed explanation-2: -Frequency is an expression of how frequently a periodic wave form or signal repeats itself at a given amplitude. It can be expressed in hertz (Hz), kilohertz (kHz), megahertz (MHz), etc.
Detailed explanation-3: -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)."
There is 1 question to complete.