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Acceleration of electron and radiation

  1. Jun 3, 2015 #1
  2. jcsd
  3. Jun 3, 2015 #2
    They do emit radiation. However, in a real-world conductor like copper wire, there are many many scattering events that interrupt the acceleration. On a macroscopic scale radiation from acceleration and decelleration due to scattering averages out and the only think you see is the magnetic field due to the current = average velocity*number of charge carriers.
     
  4. Jun 3, 2015 #3
    thanks
     
  5. Jun 3, 2015 #4

    HallsofIvy

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    Also, electro-magnetic radiation is quantized. There will be no radiation until the moving electron has (in a very rough sense) produced enough electro-magnetic energy to "fill" one quanta.
     
  6. Jun 3, 2015 #5
    thanks sir
     
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