Why Is RMS Value Important for AC Signals Compared to Average or Peak Values?

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#1 21673530 24 Feb 2015 06:34

Bhuvanesh Nick Bhuvanesh Nick

Anonymous

Post #1
21673530 24 Feb 2015 06:34

i have learned what is rms value just before . its has been stated like"power dissipated with rms voltage is same power dissipated by equivalent dc voltage".i understand this point. Later question arose to me why we need rms value of signal and i accommodate myself that is to make analyses simple.

But i want strong answer why we are interested in Rms value.?
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#2 21673531 24 Feb 2015 06:48

RA1279 RANJIT RA1279 RANJIT

Anonymous

Post #2
21673531 24 Feb 2015 06:48

root mean square used to give an average value of a signal spread over given period
of time
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#3 21673532 24 Feb 2015 06:54

Bhuvanesh Nick Bhuvanesh Nick

Anonymous

Post #3
21673532 24 Feb 2015 06:54

okay but what is the use of having rms value
#4 21673533 24 Feb 2015 07:18

RA1279 RANJIT RA1279 RANJIT

Anonymous

Post #4
21673533 24 Feb 2015 07:18

please refer to the following link:
http://www.saburchill.com/physics/chapters/0064.html

where in the average of ac current is mathematically zero hence we represent the
average value of the current as average power dessipated
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Why Is RMS Value Important for AC Signals Compared to Average or Peak Values?

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