# Lab #4 - Marc Pomi 106040098 Lab#4 Ohms Law Abstract In...

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Marc Pomi 106040098 2/23/09 Lab #4 Ohm’s Law Abstract: In this experiment we will measure the current as a function of different resistors in series and parallel to establish a plot to determine the resistance applied by the ratio of R=V/I. Procedure: 1. Connect a circuit with an ampere meter in series and a voltmeter in parallel to measure the values of a resistor. 2. Measure the vales of several resistors to establish the resistance with the relation R=V/I. Questions: 1. Yes this is an important effect because the voltmeter provides some resistance. We can check by Measuring known values of resistors verse measured values. 2. 3. The resistance is about 103 ohm according to the chart. This value is within reason due to the fact the resistor was a 100 ohm resistor with ± 5% tolerance. 4. 5. The light bulb does not obey ohms law.

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