In this experiment, we make an assumption of an "ideal voltmeter" with infinite resistance, and an "ideal ammeter" with zero resistance. Let's see what happens if we don't make this assumption. Suppose our components were non-ideal: suppose the ammeter instead had a small (say, 3) resistance R A , and the voltmeter had a large but still finite (say, 1M) resistance R V . These resistances can be incorporated by making the following replacements in the relevant circuit diagrams: Replacements in circuit diagram for voltmeter and ammeter Discussion: Non-ideal measurements I.e.: a realistic voltmeter is actually more like a combination of an ideal voltmeter and a large resistor in parallel; a realistic ammeter is more like a combination of an ideal ammeter and a small resistor in series. (In other words, our "better assumption" is just that the voltmeter accurately measures the voltage across it and that the ammeter accurately measures the current through it.) Impact of Non-Ideal Components: Draw the new circuit diagram with the non-ideal voltmeter and ammeter. If we take the voltage across the voltmeter and divide by the current through the ammeter (as, effectively, was our procedure in this experiment), what resistance do we expect to