In this paper we demonstrate how a duality transformation allows us to derive the Liénard–Wiechert fields of a particle possessing both electric and magnetic charge (i.e., the so‐called dual‐charged particle) in terms of the well‐known Liénard–Wiechert fields of the electric charge. By making use of this result, we derive also the Larmor formula for a nonrelativistic, accelerated dual‐charged particle.

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