Thursday, April 24, 2014

Capacitance

 
     On Monday, we conducted an experiment in which we turned a book into a capacitor. It is difficult to see from the picture, but there are two sheets of aluminum foil of equal area inserted into the book with pages in between them. 
     This is a chart of the capacitance we measured using our capacitor. For the first part, we increased the distance between the plates with the initial distance being the thickness of 10 pages. For the second part, we halved the area of the plates by simply folding the foil in half. We also attempted to calculate the true value of "k" for aluminum foil using some of our data. We were off by about a factor of three.  
     The above picture is a graph of capacitance vs. distance. The graph shows that capacitance is inversely proportional to the distance between the plates just as we expected it to be. 

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