- #1
Rozenwyn
- 31
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Find [tex]V_o[/tex] and [tex]i_o[/tex]. Assume an ideal op amp.
http://img236.imageshack.us/img236/2426/633bb0.jpg
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.
http://img236.imageshack.us/img236/2426/633bb0.jpg
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.
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