Recent content by CuicCuic

Excellent responses! Thank you very much for clarifying the situation.

Hello physics world, I am having a hard time understanding a rather simple thing. Let's consider the electric field produced by a uniformly charged ring of radius R, at a position $z$ along the ring's axis. From Coulomb's law in every textbook, we know that E_z∝Qz/(R^2+z^2). That is, there...