Given a circular half ring of charge (total charge Q, radius a) find the E field vector a distance 2a from its center. Use a full formal vector treatment and coordinate system as given in the diagram. Your result will be as an integral (or integrals) with limits and ready to integrate in one variable.

Given a circular half ring of charge (total charge Q, radius a) find the E field vector a distance 2a from its center. Use a full formal vector treatment and coordinate system as given in the diagram. Your result will be as an integral (or integrals) with limits and ready to integrate in one variable.