Frequency
Reminder
The Steady State AC Electric application can be used to deal with low frequency problems.
At low frequency, the equations of the electric fields  and
 and  and the equations of the
            magnetic field
 and the equations of the
            magnetic field  and
 and
                can be
            decoupled.
 can be
            decoupled.
This separation depends on: materials, work frequencies, size of the study domain. This separation is usually regarded as valid for frequencies in the range f < 1 to 10 GHz.
The frequency is defined during the choice of the application.