It is important to observe that in the dynamic case, A and V are coupled via the selected gauge. For a dynamic formulation, it is also possible to select a Ψ such that the scalar electric potential vanishes and only the magnetic vector potential has to be considered. The dynamic formulations (Frequency Domain and Time Dependent study types) of the Magnetic Fields interface are operated in this gauge as it involves only A. The Magnetic and Electric Fields interface involves both A and V and is inherently ungauged for all study types. In the static limit, A and V are not coupled via the gauge selection and thus any gauge can be chosen for A when performing magnetostatic modeling.