PHYSICS 182 Lecture Notes - Lecture 7: Gaussian Surface, Cubic Surface, The Bell Curve
1 Mar 2017
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Document Summary
Electric field at a surface: surface charge density. Flux of the electric field: for a constant field perpendicular to the surface, more generally, remember that, Ranking fluxes: the electric field e is uniform. If asked to rank the following fluxes by their shape, a is equal to b and c is equal to d: however, a and b have less flux than c and d. Gauss"s law: the net flux of an electric field through a closed surface is proportional to the net charge enclosed by that surface, the circle over the integral sign means to integrate over the closed surface. What affects the flux through a box: doubling the charge within the box doubles the flux, doubling the size of the box does not change the flux. Point charge inside a spherical surface: the flux through the sphere is independent of the size of the sphere and depends only on the charge inside.
