Problems: 2.38, 2.39, 2.49, 2.58, 3.09, 3.15, 3.26, 3.34, 3.40 Experiment with the Op-Amp circuits in the Learning Modules section of the course WebCT: Inverting, Non-inverting and Differential amplifier configuratinos. For the non-inverting configuration, what is Vo for R1 = 1K and R2 = 2K? For differential amplifier configuration, what is Vo/Vi in terms of the circuit resistances?