Electric Field of a Sphere

Mr. Anderson explains the electric field of a sphere, starting with historical measurements by Charles Coulomb. He discusses how adding or removing charge affects the electric field and uses a PhET simulation to demonstrate the relationship between distance and field strength. The video covers the inverse square law, showing how electric field strength decreases with the square of the radius. The derived equation incorporates the permittivity of free space and relates to the surface area of a sphere.

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