Response to a letter by J.R. Wait about electromagnetic waves in seawater

In response to a series of letters by J.R. Wait, and in place of a rebuttal, the authors challenge Wait to solve a never-before-published transient problem without a magnetic current density term added to Maxwell's equations. In particular, they ask for the excited electric and the associated magnetic field strength of a planar wave due to an electric step function as excitation force in seawater, taking the ionic conductance into account by allowing the charge carriers to have a mass.<
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