Mathematics

Mathematics, 29.07.2019 17:10, musicalmel

Suppose that the magnitude of the electric field of an isolated point charge were q 4πε0r2 + σ rather than q 4πε0r2 . determine the flux that passes through the surface of a sphere of radius r centered.

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Physics, 18.09.2019 02:00, susie1968

Suppose you have a sphere of radius 1.00 m that carries a charge of +1.00 µc at its center. the radius of the sphere is changed to 0.500 m. what happens to the flux through the sphere and the magnitude of the electric field at the surface of the sphere? the flux and field both increase. the flux increases and the field decreases. the flux decreases and the field remains the same. the flux decreases and the field increases. the flux remains the same and the field increases. the flux and field both decrease.

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Physics, 10.10.2019 04:20, kswaggish101

Consider a point charge q in three-dimensional space. symmetry requires the electric field to point directly away from the charge in all directions. to find e(r), the magnitude of the field at distance r from the charge, the logical gaussian surface is a sphere centered at the charge. the electric field is normal to this surface, so the dot product of the electric field and an infinitesimal surface element involves cos(0)=1. the flux integral is therefore reduced to ∫e(r)da=e(r)a(r), where e(r) is the magnitude of the electric field on the gaussian surface, and a(r) is the area of the surface.

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Suppose that the magnitude of the electric field of an isolated point charge were q 4πε0r2 + σ rathe...

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