8
Electromagnetic Waves
8.1 INTRODUCTION
Space variations of electric and magnetic field components are associated time variations of magnetic and electric field components, respectively. This interdependence gives rise to “ electromagnetic wave propagation”.
8.2 WAVE EQUATIONS FOR WAVES TRAVELLING IN SPACE
General wave equations using Maxwell’s equations are derived. In electromagnetics (EM), the basic and fundamental relations that need to be satisfied are
Maxwell’s equations if solved are simultaneous equations, which give the laws that must be obeyed by both and .
8.3 CHARACTERISTICS OF WAVES
These characteristics are as follows:
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