Electrostatic repulsion between a uncharged or slightly charged conductor and a point charge

2022/08/10 by Vladimir P. Savin, Savin, V. P., Yu. A. Koksharov +1
Chemistry · Earth and Planetary Sciences · Engineering · #Classical Physics (physics.class-ph) #Electrostatics and Colloid Interactions #FOS: Physical sciences #Geophysical and Geoelectrical Methods #Power Transformer Diagnostics and Insulation

paper · pdf · doi:10.48550/arxiv.2208.06427

openalex publication_date 2022/08/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A counterintuitive effect of a repulsion between uncharged and charged conductors is considered. Our numerical calculations prove this effect for various axially symmetric systems of a neutral conductor in an electric field of a point charge. The presence of a cavity in the conductor is very important for the repulsion effect. Our simple analytical model explains this effect in terms of specific spatial positions of induced charges.

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