Wednesday, February 25, 2015

Lab update

Draft due Friday (A) and Monday (F).


Lab calculations

You've (ideally) finished the calculations for the series part of the experiment:

total resistance
percent difference from the theoretical (65 ohms)

If you haven't yet done the parallel calculations, do them:

- total experimental resistance (battery voltage divided by battery current)
- total theoretical resistance - use this formula:
   1/Rp = 1/R1 + 1/R2

The easiest way to proceed is to use the x^-1 key on your calculator.  Don't forget to take the inverse of the sum of the inverses.

- percent difference between theoretical resistance and experimental resistance

Keep working on lab.  You'll still need the usual things:

title
purpose
data table(s)
calculations
conclusion (use the lab questions as a 'jumping off' point - make sure you answer the questions in bold)
sources of error, ways to improve, etc.

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