We graphed the output of power, current, and voltage for each laptop computer we received data from. We excluded all zero values, as we attribute those recorded values to a malfunction in the Watts Up Pro or human error while recording data. We can see from our graphs that power and current increase, if only slightly, when the screen brightness is increased. The voltage, however, does not seem to change much and does not have an overall trend of increasing or decreasing when the screen brightness was changed.
The same color does not correspond to the same computer in all three graphs because we could not manipulate the graphs in order to do that. However, we changed the title of our voltage graph, deleting the word “output,” since it corresponds to a potential difference across the device.
I like how each computer is color coded. Does the same color correspond to the same computer in all three graphs? I am not sure that ‘voltage’ should be classified as input as it corresponds to a ‘potential’ across the device.