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# lab 16 - Experiment 16 Ohm's Law Brianna Przybysz February...

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Experiment 16- Ohm's Law Brianna Przybysz February 7, 2008 Abstract The purpose of this laboratory was to examine the relationship of how resistances add together based on the structure of the circuit (series or parallel), according to the theory of Ohm's law. In this experiment we connected the resistors in two different manners, once in a parallel structure, and secondly in a series structure. We then measured the amounts of currents that flowed through each circuit and recorded the measurements. Through our experiment we confirmed the fact that the relationship between current and potential difference are directly proportional. We also confirmed the known theory that current flows from positive to negative in a circuit. Our data coincided with Ohm's law, which states that Voltage is equal to resistance times the current. Calculations #1- Ohm's Law

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V=IR 5.76=7.63R 5.76/7.63=R R= 75.491481 R= 75 ohms #2- Ohm's Law V=IR 5.76=41.6R 5.76/41.6=R R= 138.4615385 R= 140 ohms #3- Total Resistance in Series Circuit R=R1 + R2 R=580+170 R=750 ohms R (measured) = 750
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