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What is the source of energy of electromagnetic waves?

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However, since the question asked about the “source of energy of electromagnetic waves”, I interpret its point to be what keeps a wave waving and moving on. The electromagnetic wave consists of the two waves: one electric; and, the other magnetic. They are perpendicular to one another. read more

Electromagnetic waves are generated by an accelerating charge. When the wave is generated, the charge loses energy. Work is done by the charged object to generate the wave. This is the source of the energy. This is also why transmitting antennae consume electrical power - the consumed power is converted to wave energy. read more

Electromagnetic radiation is a kind of energy that travels and spreads outward as it goes, such as the lamp sending visible light in a person's home or the radio waves coming from the radio station. People encounter electromagnetic spectrum energy all the time. read more

The vibration of charged particles results in an emission of energy known as electromagnetic radiation. EM waves propagate outward from the source. Just like regular transverse waves, the oscillations of EM waves are perpendicular to the direction of the wave's travel. read more

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