- #1
safat
- 14
- 0
Homework Statement
Homework Equations
The Attempt at a Solution
I got a simple circuit with an oscilloscope, a SG (with internal resistance), and a variable resistor.
r and R are in series.
for V_R=V_0*(R/R+r)
I measured a series of R and V_R values from the oscilloscope.
Now, I'm supposed to plot those values on a graph 1/V_R vs 1/R.
This should give me a straight line, and I am supposed to derive r+δr from the gradient.
But how? and from where? The graph of V_R vs R gave an expontential (I had a plateau at approx. 300 ohms)..I'm really confused
Last edited: