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Finding the magnetic force

  1. May 2, 2005 #1
    Hello.

    I am currently working on this problem:
    "An electron moves in the X-Y plane with a velocity v = (5 *10^5 m/s , 30 degrees). The uniform magnetic field i the region is B= ( 6 i - 2 j + 1 k ). Find the resultant magnetic force on the electron in component form."

    I know that F = qv x B = qvB sin (teta)

    What mixes me up is the fact that B has 3 components. How should I begin?
     
  2. jcsd
  3. May 2, 2005 #2

    quasar987

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    You could begin by writing v in terms of it's 3 components. Then do the cross product.
     
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