I have the following circuit that Im supposed to calculate the voltage drop of R1. Im not too worried about the answer because I got a 100% on the assignment. The answer is 2.72V @ 36.97 degrees so no one has to bother working it out. Now for my question, I decided to build the circuit to learn more. When I built the circuit in the lab I got much different results than my calculated results. For instance, if I put channel 1 on my oscilloscope on the positive side of R1, I get a reading of 4.4 Vp-p @ 2 kHz (I was expecting to see 5 Vp-p @ kHz). When I put channel 2 on the negative side of R2 I get a reading of 2.89 Vp-p. Assuming Im using it right, my fancy Agilent MSO X3000 tells me that the voltage drop across R1 is 2.09 Vp-p @ ~50 degrees. My wave gen seems to be working properly. When I connect channel 1 with no circuit I get 5Vp-p @ 2 kHz, the minute I connect it to the circuit I see a 600 to 700 mV drop. Would that be typical? I was expecting to still see pretty close to 5V because channel 1 is still connected to wave gen alligator clip, I just attached it to the positive side of the resistor. I got to thinking, lets assume the 600 to 700 mV drop is normal, so I redid my recalculations with 4.4 Vp-p instead of 5 Vp-p and I got a calculated result of 2.39 Vp-p @ 36.97 degrees. Thats much closer to what my oscilloscope is telling me, but the phase is still 13 degrees different. A long story short, would this be typical, or am I doing something wrong? I would expect the numbers to be a little closer. Im using 1% resistors and my Fluke 289 tells me that theyre only a few ohms off. I have no idea how accurate my capacitors and inductors are. I have to assume theyre what the label tells me.