Mapping Electric Potential

In: Science

Submitted By Tasha0613
Words 2006
Pages 9
NaTasha James February 19, 2016
Partners: Archeline Edouard, Jonique Miller
Dr. Huisso
Mapping Electric Potential
Purpose:
The purpose of this experiment was to measure the electric potential at locations on a conducting surface resulting from various distributions of electric charge. We had to use Microsoft Excel spreadsheet and the electric potential data to generate 2-D and 3-D maps of electric equipotential. We had to analyze the maps of electric potential to sketch lines representing the electric field produced by electric charge. Finally, we had to describe how the field from lines of charge differs from that produced by point sources. The electric field is identified by a capital E and at a certain point it equals the force on a test charge divided by the amount of the charge (E=F/g). In other words, the electric field is the surrounding charges which create an electric field around a given point.
Theory:
Equipotential lines provide a quantitative way of viewing the electric potential in two dimensions. Every point on a given line is at the same potential. An equipotential region of a scalar potential in three-dimensional space is often an equipotential surface, but it can also be a three-dimensional region in space. The gradient of the scalar potential (and hence also its opposite, as in the case of a vector field with an associated potential field) is everywhere perpendicular to the equipotential surface, and zero inside a three-dimensional equipotential region. Electrical conductors offer an intuitive example. If a and b are any two points within or at the surface of a given conductor, and given there is no flow of charge being exchanged between the two points, then the potential difference is zero between the two points. Thus, an equipotential would contain both points a and b as they have the same potential. Extending this definition, an…...

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