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I Need This Point. Please Help

  1. Oct 30, 2006 #1
    partscoretotalsubmissions1014/50The two conducting rails in the drawing are tilted upwards so they make an angle of 30.0° with respect to the ground. The vertical magnetic field has a magnitude of 0.053 T. The 0.20 kg aluminum rod (length = 1.6 m) slides without friction down the rails at a constant velocity. How much current flows through the bar?
     
  2. jcsd
  3. Oct 30, 2006 #2

    HallsofIvy

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    ?? If there are "points" involve then this is either homework or a test. Also it is clearly physics, not mathematics. And you have not shown that you have done anything yourself. You did just about everything wrong!
    I'm moving this to physics homework.
     
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