Current around rotating objects?

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Discussion Overview

The discussion centers on whether an electromagnetic field is produced around rotating objects, particularly at extremely high rotational speeds, such as those of electrons. The scope includes theoretical considerations and speculative reasoning regarding the conditions under which such fields may arise.

Discussion Character

  • Exploratory
  • Debate/contested

Main Points Raised

  • One participant inquires about the production of an electromagnetic field around rapidly rotating objects, specifically electrons.
  • Another participant suggests that electromagnetic fields are produced by oscillating objects, questioning whether rotation alone would suffice.
  • A different participant raises several points:
    • Physical objects can only be rotated to a certain speed before breaking apart, which is much less than the speed of electrons.
    • If an object lacks free electrons, its rotation may not generate an electromagnetic field.
    • If free electrons are present, it is uncertain whether the rotation would cause the necessary oscillation to generate an electromagnetic field.
  • Another participant references the operation of microwave ovens and radar, implying a connection between rotation and electromagnetic fields, but does not elaborate on how this relates to the original question.

Areas of Agreement / Disagreement

Participants express differing views on the relationship between rotation and electromagnetic field generation, with no consensus reached on the matter. Some participants question the conditions under which such fields might arise, while others provide examples without clear agreement.

Contextual Notes

The discussion includes assumptions about the physical properties of materials and the behavior of electrons, which are not fully explored or resolved. The relationship between rotation speed and electromagnetic field generation remains ambiguous.

mubashirmansoor
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I'd be thankfull to know if an electromegnetic field is produced around a rotating object(extreamly fast rotations like electrons.)

It's urgent thankyou,
 
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I believe that electromagnetic field is produced around oscillating object. Rotating? I guess not.
 
mubashirmansoor said:
I'd be thankfull to know if an electromegnetic field is produced around a rotating object(extreamly fast rotations like electrons.)

It's urgent thankyou,

Hmmm... I'm no expert on the subject, but my thoughts are this:

a) You can only rotate a physical object so fast before it will break apart, and that rotational speed, regardless of materials/methods used, is far less than the speed of electrons whirling around an atom.

b) If the object has no "free-electrons" I doubt that rotation of the object would create any EM field.

c) If the object does have free electrons, I'm not sure that objects rotation would cause any oscillation of the free electrons necessary to generate an EM field.

Again, I do not know for certain.
 
mubashirmansoor said:
I'd be thankfull to know if an electromegnetic field is produced around a rotating object(extreamly fast rotations like electrons.)

It's urgent thankyou,
That's how microwave ovens and radar work, mate.

http://en.wikipedia.org/wiki/Magnetron

(EDIT -- I seem to remember that the mixer oscillator for HP spectrum analyzer oscillators designed in Santa Rosa, CA in the 1980s used the precession of a small metallic sphere somehow, but I'm not able to get any google hits on that at the moment...)
 
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