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Recent developments in obtaining a detailed model for gamma ray bursts haveshown the need for a deeper understanding of phenomena described by solutionsof the Einstein-Maxwell equations, reviving interest in the behavior of chargesclose to a black hole. In particular a drastic difference has been foundbetween the lines of force of a charged test particle in the fields ofSchwarzschild and Reissner-Nordstrom black holes. This difference characterizesa general relativistic effect for the electric field of a charged test particlearound a (charged) Reissner-Nordstrom black hole similar to the "Meissnereffect" for a magnetic field around a superconductor. These new results arerelated to earlier work by Fermi and Hanni-Ruffini-Wheeler.Comment: 25 pages, 17 figures, to appear on the Proceedings of "Analysis,  manifolds and geometric structures in physics", International Conference in  Honour of Y. Choquet-Bruhat, Isola d'Elba June 24th-26th, 200

Charges in gravitational fields: from Fermi, via Hanni-Ruffini-Wheeler, to the "electric Meissner effect"