I have placed two rings of charge, centered on the origin, laying in the x - y plane. The ring of radius a> 0 has a tota
Posted: Fri May 06, 2022 6:12 am
I have placed two rings of charge, centered on the origin, laying in the x - y plane. The ring of radius a> 0 has a total charge +q distributed uniformly, and the ring of radius b> a has a total charge -q, also distributed uniformly. Find the lowest nonvanishing term in the electric potential (x) at very large distances rb, in terms of a, b, q and to, and the coordinate dependence (either in Cartesian or spherical coordinates).