DC Circuit

Prelab:

1. Voltage should be measured for all the resistors, as well as the total voltage.

2. Current should be measured for all the resistors, as well as the total current.

Lab1:

If you are taking photos for explaining your lab setup, you should take at least two photos, one is to measure the total voltage/current, another is to measure the voltage/current in the branch.

Lab2:

The bulb should be non-ohmic, if you get an ohmic bulb: you should try a wider range of input voltages, and the bulb should be turned on so the energy is dissipated as light (also change the measurement range for the voltage/current for more precise values), which then would not give an ohmic/linear relationship between the voltage and current.

LINEST results:

If you put the LINEST table in your report, it is your responsibility to explain all the information to the readers, not just presenting a table without any label. I didn't take off your points for not explaining this for this time (just to make you feel not so bad in the midterm week), but I will do that in the future --- for an official report, you should assume that the readers will get everything from your tables/plots with the help of the table/figure legends, not guessing that, even though the output format of LINEST table is defined and can be easily googled.

Testing the goodness of linear fit:

1. Compare the R-squared value between a linear fit and a power fit for the light bulb.

2. Compare the linear fit R-squared values between that of the resistor and of the light bulb.