Justin Geeslin
Eng Physics II - M 1:00
Experiment Two – Electric Field and Potential
Introduction
This experiment builds on the last experiment in a way that potential difference is exhibited between two objects. In this case, the electric field is larger so it is possible to find and measure points differing points of charge. The charge of the field will be measured in volts with a voltmeter. This field will be created across a graph allowing for the measuring of the charge in the field.
Procedure
The larger electric field will be created across a graph allowing for the tracing of points across the field. On the graph, there will be one point of maximum positive charge. This is the point which all positive electric charge will originate. This point will be on the right and its strength will decrease as you travel toward the negative point. The maximum voltage is to be set to 8 volts. The two points will be powered by a power supply through two wires that are each clipped to metal pins. These metal pins are pinned to the graph and will serve as the points of origin for the maximum positive and negative charge. The charge will be measured in volts across the graph. Lines are to be traced representing the strength of the field in volts (8, 7, 6, etc.).
Once the electrical curves are plotted, the electrical field lines can then be graphed. These lines will be perpendicular to the curve lines and will connect the curved equipotent surfaces together. This process will be repeated for the second graph. In the second graph, there is a more apparent metallic surface with which to propagate the electrical field.
Questions
V\m = J\C m = N * m \ C m = N \ C