By using the Maxwells equations and axial symmetry, the axial symmetric unstable electromagnetic field with unstable charge source and unstable current source is studied.
By using the Maxwells equations and axial symmetry, the axial symmetric unstable electromagnetic field with unstable charge source and unstable current source is studied.
Under the circumstances of axial symmetric and non-static current distribution, a method for calculating off-axis electromagnetic field is given by using Maxwells equations and axial symmetry.