2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/145775We determine in closed form the electrostatic potential generated by a point charge at rest in a simple model of static spherically symmetric wormhole. From this, we deduce the electrostatic self-energy of this point charge.latex, 5 pages, a slight correctionGeneral Relativity and Quantum Cosmologytext