2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/53623Galilean transformation relates a physical system under mutually perpendicular uniform magnetic and electric fields to that under uniform magnetic field only. This allows a complete specification of quantum states in the former case in terms of those for the latter. Based on this observation, we consider the Hall effect and the behavior of a neutral composite system in the presence of uniform electromagnetic fields.24 pages, REVTEX, SNUTP-93-61High Energy Physics - TheoryCondensed Mattertext