Passive RC Circuit Natural Response

For this lab we had to estimate the initial capacitor voltage and the time constant .

Here's the circuit diagram


















Here's a picture of the circuit


  

Our resistors were R1=.926K ~=1k
R2=2.16~=2.2k
Our capacitor =22 uF

We calculated that our voltage  across the capacitor would be  3.44 V. Our actual voltage across the capacitor was 3.456 V. Our calculated time constant was 283 ms. Our actual value was 283.
Here are pictures of the oscilloscope


We were surprised at how close our values were. We assume the reason they weren't exact was due to the resistors, we were supposed to have exactly 2.2k and 1k but we had 2.16k and .926k. However besides this I think our values are pretty accurate. 

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