Electromagnetic wave theory was given by Clark Maxwell. The main points of electromagnetic wave theory were : When an electrically charged particle moves under acceleration, alternating electrical and magnetic fields are produced and transmitted . These fields are transmitted in the form of waves.
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Electromagnetic theory based on Maxwell’s equations establishes the basic principle of electrical and electronic circuits over the entire frequency spectrum from dc to optics . It is the basis of Kirchhoff’s current and voltage laws for low-frequency circuits and Snell’s law of reflection in optics.
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