Quote: since ratio of the area of the surface of a cone to the kinetic energy due to an electric field is constant, the energy flux is never lost and the energy's amplitude varies as 1/r

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So the kinetic energy which is developed in … [due to an electric field] … [and thus inversely proportional to square of the distance from the source.] … the area of the surface intercepted by [a] cone goes directly as the square of [the distance]. … So the fact that the amplitude of E … never lost, an energy which goes on and …   Google-1   Google-2

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Topic: electromagnetic field (63 items)