We will consider two model fidelity levels here. The lower fidelity model,
referred to here as the simple model, ignores the electromagnetic force in the
formulation of the governing differential equations.
This means that only the induced current in the circuit is considered without the effect it has on the
moving translator.
In this model, due to the absence of the electromagnetic force, v(t) will be the same as the wave elevation equation that defines ocean wave elevation as a function of time u(t) (see Eqn. (2.23)).
This will be known as the simple model, and the corresponding system of governing differential
equations is