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MrAl said:so the whole thing is:
sqrt(1/(R^2*T)*Inegral( v(t)^2 ) dt )
which equals:
(1/R)*1/sqrt(2)
Hi MrAl
You have missed the point of my question there. I wasn't asking what the RMS value is rather my query was quite different: Can we find RMS value using the relation V=IR? I would request that you give the question another read.
By the way, I don't get it where you say:
How come does it equal (1/R)*1/sqrt(2)?
Thank you for the help.
Regards
PG
Yes i made a few typos in that last post. I'll have to try to get back to that and correct those.
This is unfortunately something you have to put up with sometimes because no author writes
everything perfect ALL the time. I run into this quite a bit while looking stuff up on the web,
and most of it is so much worse than this that you wouldnt believe how bad it can be. I see
equations that are so totally incorrect that it makes no sense to me why the well respected
author would even bother to take the time to present such a thing if there was going to be
no regard for accuracy. Without accuracy in some of this stuff we end up with nothing unless
we can communicate with the author and see what the problem really was. I even see
information left totally out of the text, which is vital to understanding what the author
intended in the first place! Why bother right?
Hi
Could you please help me with the query included in the attachment? Thank you.
Regards
PG
The page you show makes it clear that the intention is to find an equivalent DC current that would deliver the same average power into the resistor. This is why using v=Ri is not the correct way to go. Ohms law does not give you power, so it is not good for finding the effective voltage and current.