What is poyting vector ? Write its mathematical form
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The vector is poynting vector not poyting vector
The Poynting vector represents the direction of propagation of an electromagnetic wave as well as the energy flux density, or intensity.
Since an electromagnetic wave is composed of an electric field and magnetic field oscillating perpendicular to one another and mutually perpendicular to the direction of the propagation of the wave, the Poynting vector is defined in terms of the cross productof the two fields. The constant in front serves to provide the correct magnitude for the intensity:
The Poynting vector represents the direction of propagation of an electromagnetic wave as well as the energy flux density, or intensity.
Since an electromagnetic wave is composed of an electric field and magnetic field oscillating perpendicular to one another and mutually perpendicular to the direction of the propagation of the wave, the Poynting vector is defined in terms of the cross productof the two fields. The constant in front serves to provide the correct magnitude for the intensity:
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