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Magnetic field

  1. Sep 12, 2009 #1
    1. The problem statement, all variables and given/known data
    http://img3.imageshack.us/img3/2178/9b26f2dd8dd8a8686c9c8c2.th.png [Broken]

    2. Relevant equations


    [itex]\vec{\upsilon}= \vec{\Delta} V / ( B d)[/itex]

    [itex]\vec{\upsilon}= u E[/itex]

    3. The attempt at a solution

    from the diagram , we have [itex]\vec{\upsilon} = 1.25*10^-5 V/(B)(0.001m)[/itex]

    using the second formula ( 1.25*10^-5 )V/(B)(0.001m) = 3.5*10^-5 (240V)(0.12m)


    in which I got B = 1.7857*10^-7, which is wrong...
    why?
     
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Sep 15, 2009 #2

    tiny-tim

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    Last edited by a moderator: May 4, 2017
  4. Sep 16, 2009 #3
    Thank you very much for info, I was wondering why no1 bother to reply...
    The link somehow manage to show a picture on my computer.

    Well, the question have been solved by my friend. It is no longer a problem.
    Thank you again for telling me though
     
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