We expected to see that when the potentiometer (load) is of the same value as the 5.6 kΩ, the maximum power of the load would be achieved. The first experimental setup was simple:
Our experimental data came out as follows:
We came across some bad data and simply omitted those points, giving us the linear function seen on the graph. Despite the encountered errors, we were able to determine the maximum power when the load resistance is 5120 Ω, thus supporting our hypothesis.
The next part of the experiment had us build the following circuit:
We ran the circuit through a software called Logger Pro in order to determine maximum power across the potentiometer, similar to the first part of the experiment. We were, however, unsuccessful because of the noise in the current graph. This prevented us from giving us an accurate reading of the power graph.
Perhaps the biggest cause of our problem were the adapters used to power the Logger Pro instruments. The AC source could attribute to the noises we see in our graphs because of the changes in current.
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