Data

Iron Core

Our results actually surprised us, based on how many errors could have occurred there were very few errors that
actually did. The Iron core had more data points because it was a larger magnet and was able to handle larger amounts of current.
However it was still almost a linear line. Other than two large jumps at .96 Amperes and 1.31 amperes it had a very strong correlation of
.9979. That is an extremely strong correlation. The errors could have been caused by human error which is probably the most likely
such as me bumping the table, but other possible errors could be fluctuations in the magnetic field in that point of time or errors that the
MEMS had when measuring the magnetic field.

Steel Core

They steel core produced an even stronger line of correlation. The correlation was .998588. The Steel core did not have an error
as large as the iron core did but this is probably because there was less human error when taking the data because I had mastered
the rhythm of how to collect the data. The steel core was even more surprising then the iron core because I did not expect the
iron core to have such a strong linear regression so I expected the steel core to have an even weaker linear regression. But it
was quite the contrary since the steel core had an even stronger correlation.

Conclusion

Here is the excel data collected

Here is the text data collected

Here is the original paper

The results showed that both the iron and steel cores form linear lines of current to magnetic strength. Our hypothesis was correct even to our own surprise. Both iron and steel cores showed strong lines of linear regression. It was unexpected that the steel core showed a stronger line of regression. I think that the data came out this way because there were double the data points for the iron core than the steel core. Giving the iron core more chances to stray from a perfect linear line. The main errors were caused when taking data for the iron core and were most likely that I bumped the able and the magnet got misaligned with MEMS. If I was to do the experiment over again I would use larger magnets with a larger wire to enable me to use a larger current. I would also track the voltage to help solidify what the current should be and make sure it stays steady because there were times where I spent 2 minutes trying to get it to get even close to a certain current. Over all the experiment was fun and I learned a lot about magnetism.