Physics307L F09:People/Martin/ESR

=ESR Summary= .
 * Link to the lab manual:
 * Link to my lab notebook for this experiment: []

Purpose
The purpose of this experiment is to figure out the $$g_s\;$$ factor from the spin flip transition of a free electron in a magnetic field.

Results



 * Above is a graph of the Magnetic field provided by the Helmholtz coils times the Bohr magnetron vs the frequency times Planck's constant. The slope is the g factor.

Final value for $$g_s\;$$: 1.86

Uncertainty in $$g_s\;$$: 0.005

Accepted value for $$g_s\;$$: 2

Relative error: 7.26%

How could we improve our experiment

 * Our percent error was about 7% this is not the best experiment we have done all semester but the results were still not bad.
 * Since most of our data yields the same result and the uncertainty in our result was small I believe that the main source of error was systematic.
 * If I were to do this experiment again, I would first check all of the equipment to insure that it all worked properly. This is the only thing that I can think to do to solve this systematic error problem.

Conclusions
Possible sources of error
 * Our percent error was about 7% this is not the best experiment we have done all semester but the results were still not bad.
 * I learned a lot during the experiment, mostly how to set up that complicated circuit and how to better use an oscilloscope to collect data.


 * Since most of our data yields the same result and the uncertainty in our result was small I believe that the main source of error was systematic.I am thinking bad equipment that might have effected our data.