Nail Experiment
The nails represent the direction of the electric field and the flux is perpendicular to the area of the surface of the which is represent with the wire hanger. Using a ruler we measured the angle made with the surface and graphed how the angle changed with respect to the amount of nails covered by the surfaced.
The results of the graph are shown here and was fitted with a cosine wave.
Active Physics
Here is a picture of one point charge inside of a shell.
The field changes as a point charge is added and the magnitude changes.
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