1.) If you want to see a full response of the capacitor\'scharging, it will roug

Question

1.) If you want to see a full response of the capacitor'scharging, it will roughly take 7-8 time constants to complete itscharging. Determine the appropriate length of timefor collecting the signal so that you can see several cycles ofcharging and discharging of the capacitor.

2.) If the capacitor also took 7-8 time constants to fullydischarge, how long would one period of the output signalbe? Thus, determine an appropriatefrequency at which to set your square wave.

Thank you for your time and consideration! This has been a realhelp. I won't forget to rate lifesaver! :):)

Explanation / Answer

1.) The time constant of an RC circuit is just that,RC. So we have =(47k)(2.2u)=.1034s We will choose 8 timeconstants to be sure that the capacitor is fully charged. So8 time constants would be: 8*(.1034s) = .8272s. So to capture two completecharging/discharging cycles we would wait 4*.8272s =3.31s. This amount of time should besufficient to capture enough information. 2.) One period of the output signal would be the totaltime from when the capacitor starts charging to when it is fullydischarged again. This would be twice our 8 time constantnumber (since that number equals one complete charge or dischargecycle) and is 2*.8272s = 1.65s The frequency of our function generator would then be theinverse of the period since f = 1/T: f = 1/1.65s = .6Hz

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