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Unformatted text preview: potential difference across it. The independent variable is the battery voltage and the dependent value is the current. The slope of the graph was 1.026 mA/V, which is supposed to be the resistance of the resistor. This is because according to Ohms law, V/I=R. My value was 4.48% off from the expected value I measured in the beginning, which is 982 ohms of .982 mA/V. In part B, I determined the relationship between the current in a resistor and the value of the resistance. The independent variable is the reciprocal of the resistance and the dependent value is current. By graphing the values I found, the slope is 5756 mA*, which is the potential difference across the battery. This is because by rearranging Ohms Law, V=IR. My measured was 2.44% off from the measured value of the four batteries, which was 5.90 V or 5900kV. From this lab I learned that the circuit obeys Ohms Law....
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This note was uploaded on 09/07/2011 for the course PHYSICS 101 taught by Professor Graham during the Spring '11 term at UNC.
 Spring '11
 Graham
 Physics

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