APS111H1 Lecture Notes - Lecture 7: Farad, Function Generator, Oscilloscope
14 Feb 2018
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Document Summary
The goal of this two-week laboratory is to develop a procedure to accurately measure a capacitance. In the first lab session, you will explore methods to measure capacitance, and their uncertainties. Instead of handing in your lab notebook after the first session, you will take it home, reflect on your results, and write a procedure to do an accurate capacitance measurement. In the next lab session, you will follow your own procedure (with amendments if necessary, and improvements if you can make them) to accurately measure a capacitor. The fundamental equation for a capacitor is q = cv , where q is charge in coulombs, c is capacitance in farads, and v is voltage in volts. Charge is not so easy to measure directly, it is more common to measure current i = dq / dt . But capacitors do not pass dc current, so a time-dependent current measurement is necessary.
