Comment by bluesmoon

During my physics practicals for my high school final exam, I had to measure the voltage of a Daniel Cell using a Dry Cell (1.5V), a 2metre length of wire and a bunch of other stuff.

The only problem... the dry cell was dead, so only carried 0.8V or something. So, my results consistently showed that the Daniel Cell had a PD of 1.7V (it's supposed to be ~1.1V).

The examiner came up with a brilliant solution to "fix" my data. Switch the labels on the data columns.