Field at the center of a ring having an opening.
A ring center O and radius R bears a uniform linear charge density λ except on a corner arc center 2α
Determine the electrostatic field in O.
Solution : Hydrogen atom - Corrected Exericises on Gauss - electromagnetism
∎ Back to the exercise Hydrogen atom. 1. electrostatic field. As the vector electrostatic field is opposite the gradient of the potential V and it depends only on r (the distribution having spherically symmetrical) are obtained: 2. Feed field. The flow of the electrostatic field is defined by: As the field's radial component and constant over a sphere of radius r: The study gives limits: to r tends to 0 Φ = 0 for r approaching infinity. According to Gauss, a domestic load sphere of radius r expressed as: . We can therefore conclude that the total charge distribution is zero and that at point O we have a positive point charge q. 3. Volumetric charge density. The charge contained between the spheres with center O and radius r and r + d r is: Is then obtained: This charge density is negative and has a total charge...
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