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A new family of exact solutions of the Einstein-Maxwell equations for staticaxially symmetric spacetimes is presented. The metric functions of thesolutions are explicitely computed and are simply written in terms of theoblate spheroidal coordinates. The solutions, obtained by applying the Ernstmethod of complex potentials, describe an infinite family of static chargeddust disks with an inner edge. The energy density, pressure and charge densityof all the disks of the family are everywhere well behaved, in such a way thatthe energy-momentum tensor fully agrees with all the energy conditions.

A family of relativistic charged thin disks with an inner edge