Friday, November 16, 2018

electromagnetism - Minimum frequency of an electromagnetic wave



Is it possible to create an electromagnetic wave of near zero frequency?


An electromagnetic wave carries energy. If we can make the frequency of an EM wave vanishingly small and make it practicality DC, will it also carry energy? I don't think it is possible. Hence there should be some fundamental limit on the minimum frequency of an EM wave.


Is there any such thing?




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