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EM radiation and charge

  1. Oct 17, 2008 #1
    Does a stationary charge emits electromagnetic radiation?
    Does a moving charge in magnetic field emits electromagnetic radiation?
  2. jcsd
  3. Oct 19, 2008 #2


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    A stationary charge would only emit radiation if it were acceleratiing, and then it would no longer remain stationary.
    A moving charge in a magentic field would accelerate and thus emit EM radiation
    (unless it were moving at constant velocity parallel to the B field.)
  4. Oct 19, 2008 #3
    There is considerable debate over whether a uniformly accelerating charge does, in fact, radiate. [Shoddy reference, but should provide a starting point].
  5. Oct 20, 2008 #4


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    I don't know the author or status of that shoddy website, but every textbook I have seen
    (about 20) states that a uniformly accelerating charge does, in fact, radiate.
    Perhaps "considerable" is a confuted overstatement.
  6. Oct 20, 2008 #5
    As I stated, that site should have been nothing but a starting point. You want peer reviewed papers? You've got 'em.

    Annals of Physics, 124, 169-188 (1980)


    Phys. Rev. 76, 543 - 544 (1949)


    I'll admit to not having read these articles, but the abstracts alone should be sufficient to convey my point; there is some debate.

    Indeed, my Google searches even brought me to this thread:

    It seems you've been confuted. I suggest finding the word in a dictionary before you use it again.
  7. Oct 21, 2008 #6


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