Ohm�s Law

Ohm�s Law - Ohm's Law Joey Rodriguez Partner: Daniel...

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Ohm’s Law Joey Rodriguez Partner: Daniel Jepson Physics 1430 - Section C2 Performed On: 8/28/07 T.A. Preet Sharma
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Abstract In this experiment, we were trying to determine whether Ohm’s Law was accurate according to the data we collected. In order to do this we needed to determine the resistivity of a metal wire. We did this by setting up a circuit in which the wires were connected to a power source, which were in turn connected to a voltmeter and ammeter. We then probed it at different locations and took various measurements. We calculated the average resistance to be 2.68 . Then we found the wires cross sectional area and length in order to complete our equation for resistivity ( ρ =(RA)/L). The resistivity was found to be 1.9 x 10^-7 Ω. m. Our data indeed proved that if the temperature of the conductor remains constant, the potential difference across its terminals and the current through it is directly proportional. We also determined the wire to be made of steel. All in all, our experiment conclusively proved Ohm’s Law.
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Ohm�s Law - Ohm's Law Joey Rodriguez Partner: Daniel...

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