gaurkin

If the fundamental source of a sound wave is a vibrating object, what is the fundamental source of an electromagnetic wave?

Please help me in relation of sound and electromagnetic waves.

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maya090

The fundamental source of an electromagnetic wave is a moving charge. For example, in a transmitting antenna of a radio station, charges are caused to move up and down at the frequency of the radio station. These moving charges set up electric and magnetic fields, the electromagnetic wave, in the space around the antenna.

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ekadant

moving impose may be the essential supply of nonparticulate radiation

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