In this particular lab, one must start by cutting a piece of white paper, electrically
conducting paper, and carbon paper in similar dimensions of 8”x6”.
Then place the
white, carbon, then electrically conducting paper on the surface of the modified 2D
version of an electrolytic tank and then follow figure B in Appendix A to set up the rest.
Using the digital voltmeter one can determine the charge over the electrically charged
paper while using the connection wire probes to indent a mark for 5 different Voltage
outputs (will be later used to analyze the electric field). Next one can determine potential
gradients by using the 1cm distanced twopronged probe with the voltmeter, placing the
negative lead down and finding the values for the positive prong until the maximum
1 http://www.physicsclassroom.com/class/circuits/u9l1c.cfm
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value is achieved, then finding the electric field vector (E) with these points; repeating
this five times.
Data Analysis:
Approximation of charges and the relative shape and layout of their respective lines:
Figure A: Field gradient results
Results/Discussion:
While there were no quantifiable ways to compute a percentage error for this particular
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 Spring '12
 Dr.Phaneuf
 Physics, Electric Fields, Potential difference, Electric charge

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