Physics - Equipotentials

Physics - Equipotentials - Equipotentials Abstract: In this...

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Equipotentials Abstract: In this experiment, we evaluated equipotent contours for three different geometries in order to determine the relationship between the potentials and the electrical field lines. Using a battery connected to electrodes and a probe to measure the different potentials, we located electrical field lines and recorded the voltage. The results indicated that the electrical field lines are curved when using the point equipotentials and straight when using the parallel plates. In addition, the potential gets smaller as you move towards the positive charge and the voltage is proportional to the distance from the positive charge. Introduction Determining the voltage between two different conductors depends largely upon the shape of the conductors and distance between them. Because equipotentials are hard
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to measure, abstract in nature, and can yield significant uncertainty measures, we investigated equipotentials using a simplistic, two-dimensional analysis. We conducted the experiment using a shallow dish filled with an electrolytic solution, which in this case was tap water, to measure the currents. This experiment was conducted using three different combinations of arrangement; which included: two point charges, parallel plates, and a combination of a point charge and parallel plate. We then made a comparison of the relationship between the equipotentials and the electrical field lines and their geometries. Procedure Equipotential is exhibited in three different geometries, which were evaluated to determine the relationship between the electrical field lines and the potentials. Approximately 1 centimeter of tap water, the electrolytic solution, was filled in the pan. A piece of graph paper was placed to use as a coordinate system under the pan when measuring the location of the various potentials. The jumper wires were then connected from the battery to the various electrodes. The negative lead was attached to the negative battery and the positive lead to the probe. The probe was used to locate the different electrical field lines within the pan, and the electrical potentials were measured in
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This note was uploaded on 04/30/2008 for the course PHYS 202 taught by Professor Johnson during the Fall '07 term at South Carolina.

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Physics - Equipotentials - Equipotentials Abstract: In this...

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