Apr 29, 2019
Anyone know how to solve this physics problem?
An insulating ring of radius R = 0.2989382589 m is centered at the origin and lies in the xy plane. The ring has total charge Q = 25.0 nC distributed uniformly around its circumference. There is an observation point z = 0.200 m directly above the center of the circle.
I have been trying to find a point that is far enough away that the ring can be seen as a particle. I have been using the following equations to try and solve it, and they haven't been working.
|Vring - Vparticle|/Vring = 0.05 Vring = Q/(4πƐ0*sqrt(R^2 + z^2)) Vparticle = Q/(4πƐ0r) in which r is the distance between the particle and the observation point, and also the value I'm trying to find