# Could we really charge metal plates using microwaves?

While skimming through Dielectric heating, I read that they use microwaves to charge the plates. How do they do that?

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Hello Abdel, Perhaps Any reference would be good, so that many users could try to answer. :-) –  Waffle's Crazy Peanut Oct 21 '12 at 8:15

Absolutely. This is how a microwave ovens work (at least when you put metal in them). Microwave ovens emit electromagnetic radiation in the microwave region (roughly $2.4 \, \mathrm{GHz}$) Metal plates in a microwave oven act as antennas and the electromagnetic radiation induces a huge electric current.