Op Amp – Solving Operational Amplifier Problems

circuit analysisoperational-amplifier


simulate this circuit – Schematic created using CircuitLab

I am attempting to solve the above circuit for V0. Current and Voltage variables are from me. Thus far I've used KCL to say that $$i_3 = i_2 + i_1$$ and by ideal op amp function, $$ V_1 = 1V $$ $$V_3 = 2V $$

From there I say that $$ \frac{-1}{10k} + i_2 = \frac{2-V_0}{40k} $$

But that doesn't really get me any closer to finding V0, what am I missing?

Best Answer

Try solving for V2 first, since it does not depend on the right-hand amplifier.

Once you have that, you can easily solve for Vo.