The third circuit was reasonably simple as well. All we had to do was do exactly what we did in the second circuit, but add another resistor of resistance 100Ω afterwards. We got about 307.6Ω which also was a relatively small percent error, 8.5%.For the fourth circuit, we had to do quite a bit more number crunching. Though more complicated than the last circuits, it was still not too bad to solve. First, we had to calculate the series resistances in our 100 Ω and 330 Ω resistors. We took that and calculated the resistance with another resistor, 560 Ω, in parallel. That total resistance was increased by 330 Ω because another resistor was in series. Then all of that resistance was again calculated in parallel with a 560 Ω resistor. After all of that, we added another 100 Ω from a final resistor in series and came out with a grand total of 383 Ω. This wasn't as close as our previous two, coming at 22.5%error. We can attribute this error again due to not checking the actual resistance of our resistors, and just assuming they were perfect. ResultsOur results came both as surprising, and not surprising. We weren't surprised to see that a simple resistor obeyed Ohm's law almost perfectly. We were, however, surprised to see the interesting relationship between current and voltage of a light bulb. We did not expect to see that kink, but realizing why it was there made a lot of sense. We had no idea what to expect forour diode, but after realizing what a diode does, we seemed to be able to comprehend the

graph and understand what was happening. The graphs that we saw had some width, this was because of "noise" or outside electric fields causing it not to be perfect. It was interesting to see the experimental values of our circuit's resistances. We knew how we could calculate them theoretically, but we didn't know what to expect when the actual resistances were calculated based off of measured current and a given voltage. We did expect some error before completing this experiment because as stated before, we omitted the