Find [tex]V_o[/tex] and [tex]i_o[/tex]. Assume an ideal op amp.(adsbygoogle = window.adsbygoogle || []).push({});

http://img236.imageshack.us/img236/2426/633bb0.jpg [Broken]

I tried applying KCL at v1 and v2 nodes but then got stuck because I had 2 equations with 3 unknowns.

[tex]\frac{12-v_1}{4} = \frac{v_1-v_2}{8}[/tex] and

[tex]\frac{v_1-v_2}{8}+\frac{-10-v_2}{20}= i_o[/tex]

Where [tex]i_o[/tex] is the output current of the op amp and not the current flowing thru the 8 Ohm resistor ? I missed a few lectures on Op Amps and now I am trying to catch up from the book but I am having a hard time with it.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Op Amp Question

**Physics Forums | Science Articles, Homework Help, Discussion**