The quantum dynamics of a magnetic monopole in the presence of a thin electric flux is investigated. We discuss the dual Aharonov–Bohm effect and we analyze this in the point of view of the duality transformation. We also study a double slit interference experiment for a magnetic monopole in the presence of an electric vector potential. We demonstrate the appearance of Berry's quantum phase in this dynamics. The scattering of a magnetic monopole by a thin electric flux tube is studied, the scattering amplitude and the phase shift are obtained.