Thanks for the explanation. I think I understand it better now, even though I still can't get the correct answer.
The attachment is a quick sketch of a section of the circuit with my variables labelled.
Here's my KCL equations:
1)
Vg/4000 = -Vx/20000
so Vx = -5Vg
2)
Vx/(aR) =...
Homework Statement
The op-amp in the circuit shown is ideal (please see attachment). The adjustable resistor RΔ has a maximum value of 160 kΩ and α is restricted to the range of 0.22 ≤ α ≤ 0.7.
(a) Calculate the range of vo if vg = 40 mV
(b) If α is not restricted, at what value of α...