- Make the world a better place through real, fun, and free physics education.
My Most Recent Physics Video:
Gauss's Law - Point Charge Electric Flux (7:00)
In this video, we learn how to determine the electric flux through a sphere that surrounds a positive point charge. We start by discussing the equation for electric flux and how it applies to uniform electric fields. We then move on to the more general equation for electric flux, which does not require the electric field to be constant. We use this equation to calculate the electric flux through a concentric spherical surface surrounding a positive point charge and show that it is independent of the radius of the surface. This demonstration illustrates Gauss' law, which states that the electric flux through a closed surface is equal to the closed surface integral of the dot product of the electric field and the area of the surface.
0:00 Point Charge Electric Flux
4:18 Gauss’s Law
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