Electromagnets, high voltage/amps, and RF

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Discussion Overview

The discussion revolves around the interaction between RF signals and high-powered circular electromagnets, specifically toroidal magnets. Participants explore theoretical implications and potential experimental outcomes without conducting actual experiments due to safety concerns.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions the effects of directing RF signals into a toroidal electromagnet, suggesting that one side may have a lesser magnetic field.
  • Another participant clarifies that a toroidal magnet has a symmetric magnetic field and that RF signals, such as microwaves, would not be affected by the magnetic field, as photons do not carry charge.
  • It is proposed that the interaction of microwaves with the toroidal magnet would result in the induction of eddy currents, leading to heating of the metal, rather than any signals being emitted.
  • A later reply acknowledges the responses and expresses gratitude for the clarification.

Areas of Agreement / Disagreement

Participants generally disagree on the initial assumptions regarding the magnetic field's influence on RF signals, with some asserting that the magnetic field is irrelevant to the propagation of RF signals.

Contextual Notes

Participants express uncertainty regarding the experimental setup and the implications of their theoretical considerations, particularly concerning the safety of conducting such experiments.

Who May Find This Useful

This discussion may be of interest to individuals exploring the interactions between electromagnetic fields and RF signals, as well as those considering experimental setups involving high-powered electromagnets.

SkiesOfBordom
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I was wondering what the reaction would be if you aimed RF signal/s into a high powered circular electro-magnet (i think the proper term is a toroid ?). I ask because its too dangerous for me at the moment to conduct experiment. (220v @ 20amps).

would the signal be shot out the side that has the lesser field? If i remember correctly, one side of this kind of electromagnet has a greater field.

I have a lot of things tinkering inside my head, and would like to voice them.
 
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I'm afraid I have no idea what you're talking about. What would happen if you aimed a strong beam of, say, microwave radiation at a toroidal magnet?

(A toroidal magnet has a field that is symmetric across the plane of the toroid, so neither side has a lesser field.)

As far as the microwaves are concerned, the magnetic field is irrelevant -- photons do not carry charge, and thus are not affected by magnetic fields. The microwaves would interact with a toroidal magnet in the exact same way that they would interact with any other toroidal piece of metal. They would induce eddy currents, which would heat up the metal. No signals would be "shot out" of anything.

- Warren
 
The effect on the RF signal would be the same whether the lump of metal were a magnet or not a magnet. The static magnetic field would not affect the propagation of the RF signal.
 
ooo ok. thanks for the responses.
 

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