Re: Internal resistance

[Brian Whatcott <betwys1@SBCGLOBAL.NET>]

Ludwik Kowalski wrote:

> > Notation:
> > Vo volts measured when I is zero (switch off)
> > V1 when switch is closed (I as indicated below)
> > I current measured current (switch on)
> >
> > 1) Results for R1 (nominal 2.8 ohms, 12.3A)
> > Vo=6.0   V1=4.2    I=1.33 A
> > Vo=10.0   V1=2.2    I=2.39 A
> > Vo=16.0   V1=11.7    I=4.00 A
> > Vo=20.0   V1=14.7    I=5.06 A
> >
> > 2) Results for R2 (nominal 21.5 ohms, 4.4A)
> > Vo=6.0   V1=5.5    I=0.24 A
> > Vo=10.0   V1=9.3    I=0.42 A
> > Vo=16.0   V1=15.0    I=0.67 A
> > Vo=24.0   V1=22.7    I=1.03 A
> > Vo=30.0   V1=28.3    I=1.28 A


V1 for V0 == 10.0 volts is an outlier, or possibly a measurement/
transcription error.



Brian Whatcott    Altus OK    Eureka!