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Elio Fabri
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If Photons do not have 'charge,' how do microwaves which use the negative and positive polarity of the wave agitate $\rm H_2O$?

As far as i have understood it, Photons do not have Charge. Charge as i have understood it is the Positive and Negative charge of an atom.

In context to $\rm H_2O$ being a polar molecule, microwaves ovens utilise the positive and negative polarity of the microwave to agitate the $\rm H_2O$ Molecules creating kinetic energy and heat.

How is it so, that an EM Wave that has no charge, is able to agitate the charged particles of $\rm H_2O$?

Razor
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