1. The problem statement, all variables and given/known data http://imageshack.us/a/img27/7043/homeworktest2prob5.jpg [Broken] Find the load current IL (in microamperes) in the circuit. 2. Relevant equations V = IR KCL, KVL, voltage division, current division, Op-Amp Output V = (Gain)(V+ - V-) (Gain) = -Rf / Rin 3. The attempt at a solution I'm not sure how to figure out the voltages at the nodes before the inputs to the op-amp I think the gain is just -5k / 10k I'm pretty sure all I would need to figure out is the input node voltage or whatever the Vin is for each input. But I'm guessing: V out = (5V - 3V)(-5kΩ/10kΩ) = -1V IL = -1V/4000Ω = -250μA ?