how can i find AC frequency from DC?


by thebluser
Tags: frequency
thebluser
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#1
Feb3-13, 08:24 PM
P: 25
can you tell me all of the equations to find AC frequency? also, what is AC voltage? is it somehow linked to frequency?
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jedishrfu
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#2
Feb3-13, 08:54 PM
P: 2,493
wikipedia may help:

http://en.wikipedia.org/wiki/AC_current
thebluser
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#3
Feb6-13, 03:26 PM
P: 25
no, no it didn't.

berkeman
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#4
Feb6-13, 03:55 PM
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how can i find AC frequency from DC?


Quote Quote by thebluser View Post
can you tell me all of the equations to find AC frequency? also, what is AC voltage? is it somehow linked to frequency?
Quote Quote by thebluser View Post
no, no it didn't.
Your questions are not making much sense yet. What is the context of your question? Why didn't the wiki article help?
thebluser
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#5
Feb6-13, 04:45 PM
P: 25
my question is if AC voltage is somehow linked to AC frequency
berkeman
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#6
Feb6-13, 04:58 PM
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Quote Quote by thebluser View Post
my question is if AC voltage is somehow linked to AC frequency
Yes. Any AC waveform will have a frequency or range of frequencies (and potentially a DC offset as well). If the AC waveform is a pure sine wave, it will have one frequency.
berkeman
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#7
Feb6-13, 04:59 PM
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Maybe this article helps some? http://en.wikipedia.org/wiki/Frequency

.
trollcast
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#8
Feb6-13, 05:12 PM
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Assuming you're talking about purely sinsoidal waves.

The RMS voltage doesn't depend on the frequency since it is just a measure of the average voltage (or the average of the amplitude of the sine wave). This isn't affected by the frequency as if you change the frequency you only change the sine wave in the horizontal or time axis so this doesn't affect the amplitudes.
thebluser
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#9
Feb6-13, 06:09 PM
P: 25
thanks for your help.


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