I have done an experiment where we created two simple circuits with two resistors. The first part of the experiment was with two resistors in series, and the second part of the experiment was with two resistors in parallel. The resistors have different resistances - 470 ohm and 1000 ohm. The potential - 5V is supplied by a power supply. The point of the experiment was to show which values are constant and which change when the two resistors are connected in series and in parallel.
My questions are the following:
1. Excluding the error caused by human and the error of the instrument, what OTHER errors might have occured during this experiment? So far I only have resistance of wires.
2. What are some possible next stages of this experiment? What are better ways to perform this experiment? It doesn't matter how expensive ot crazy or impossible these ways are.