Phasor to Complex

[Wayne]

Hi

I have calculated the following network using the cosine law.
___SIGGEN (Vs)_
Ś Ś
Ś--/\/\/\/\-----Ś Ś----Ś
Ś Vs Vc
Ś
---
GND

Vs^2=Vr^2+Vc^2 - 2VrVc Cos(theta1)
theta1=80deg
Vs=1v
Vr=0.25v


I am being domb... but how do I get this into complex format e.g. a+jb.
Please give an example using my data.

Thanks


Wayne

 

[Rich Grise]

On Sat, 16 Oct 2004 17:43:16 +0000, Wayne wrote:

Hi

I have calculated the following network using the cosine law.
___SIGGEN (Vs)_
Ś Ś
Ś--/\/\/\/\-----Ś Ś----Ś
Ś Vs Vc
Ś
---
GND

Vs^2=Vr^2+Vc^2 - 2VrVc Cos(theta1)
theta1=80deg
Vs=1v
Vr=0.25v


I am being domb... but how do I get this into complex format e.g. a+jb.
Please give an example using my data.

a * r * cos(theta) + j * b * r * sin(theta)

Thanks

You're welcome.

Cheers!
Rich

 

[Wayne]

Don
I don't. I am going to try and work out what my electrochemical
cell looks like in terms of a RC network.


Wayne
"Fred Bloggs" <nospam@nospam.com> wrote in message
news:41730892.9060704@nospam.com...

Don Kelly wrote:


How do you know that the "capacitor" doesn't have some loss component? I
suspect that this is the case.

Don Kelly
dhky@peeshaw.ca
remove the urine to answer


If that is the case then he uses Z=Vs/I which is again a measured phasor
for I- he will not be able to get away with just magnitude measurement.
Then he uses Zunknown=Z-R and there you have it. Zunknown= Ru-jXu.

Wa