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RC circuits lab



Can someone refer me to a good lab I can do with Advanced Placement (C) physics students for RC circuits? I want them to measure current and voltage several times as a capacitor charges/discharges and obtain the exponential curves which we can then fit and derive the proper equations.

My main problem is my lack of experience with these type of circuits so that I do not know which combinations of resistance, capacitance, and applied voltage provide the proper charging time, etc. I blew up a capacitor the other day while I was playing in the lab (and supplies are limited!)

Perhaps some of you have written something of your own you could share with me, or refer me to some website.

Thanks

Justin Parke
Oakland Mills High School