Also known as: ER-, ER+, ER(-)
ER has various meanings in the Civil Aviation category. Discover the full forms, definitions, and usage contexts of ER in Civil Aviation.
Energy propagated at the speed of light by an electromagnetic field. OR Energy propagated as time-varying electric and magnetic fields. These two fields are inextricably linked as a single entity since time-varying electric fields produce time-varying magnetic fields and vice versa. Light and radar are examples of electromagnetic radiation differing only in their wavelengths (or frequency). Electric and magnetic fields propagate through space at the speed of light.
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