(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

http://img3.imageshack.us/img3/3939/opamp.jpg [Broken]

Draw an imaginary boundary around the op-amp, and apply KCL at the five wires that intersect the boundary

2. Relevant equations

3. The attempt at a solution

I am having quite a problem understanding the question above... which boundary should I draw around? Could someone point this out?

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# Homework Help: Kirchoff's current law for an opamp

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