Recent content by jtran06

I've worked it out conceptually to see that only those in the z direction do not cancel out but I'm at lost on how to retrieve that mathematically.

Homework Statement Two half-rings of charge of opposite polarity are brought together at the origin (so that the rings create a full circle against the y- and z-axis. Each half-ring has a charge of magnitude Q and radius a. Derive the net electric field at point P, located on the +x axis a...