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Why photons are electrically neutral?

Updated: 4/28/2022
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10y ago

Best Answer

They are only

neutral' in the sense of having no charge - they do have an electrical field.

If they had charge, they would also have rest mass, because the charge represents energy and energy and mass are the same thing. So they would not travel at the speed of light. At least classically, it is not possible to have a charged massless particle.

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10y ago
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Q: Why photons are electrically neutral?
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