Lab Brief 0 - Experiment 0: Graphite Resistance and Voltage...

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Experiment 0: Graphite Resistance and Voltage Shayan Rizvi Department of Electrical and Computer Engineering, University of Connecticut, Storrs, Connecticut 06269 Resistance and voltage was measured across various shapes and distances using the graphite from a pencil. Using a multi meter we were able to calculate the specific voltages and resistance levels at various points in the shapes. These readings followed a specific trend depending on units of length (distance and width) and frequency of data points (number of lines) from a stable point on the shape. The resistance (kΩ) decreased with increasing width (0.5- 3.0 a.u.) and number of lines (1-7). As we measured points further away from the stable point the voltage decreased (0.758 – 0.332 V). Introduction. Graphite was used as a means to measure resistivity and voltage. Graphite is not your average conductor, it is a semi metal. As an example a real world application of a graphite conductor could be an arc lamp electrode. We will be applying graphite to shapes and surfaces so we can then test their resistivity. We will be testing its resistivity at various lengths and widths. We will also be testing for different voltage readings at different points within a surface. Procedure. With all of our figures/surfaces we shaded them in with graphite (a pencil was used) and we tested for the resistivity with a multi meter. Our first figure was a rectangular region.
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Lab Brief 0 - Experiment 0: Graphite Resistance and Voltage...

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