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Homework Help: Electric field problem

  1. Jan 5, 2007 #1


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    A particle of mass m and charge q moves at high speed along x axis. It it initially near x=-infinity and it ends up near x=+infinity. A second charge Q is fixed at the point x=0, y=-d. As the moving charge passes the stationary charge, its x component of velocity does not change appreciably, but it acquires a small velocity in the y direction. Determine the angle through which the moving charge is deflected.

    im quite poor in integration.. any hints, anyone?
  2. jcsd
  3. Jan 5, 2007 #2


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    Staff: Mentor

    We need to see some of your work before we can help you -- PF rules. What is the vector force on the moving charge due to the fixed charge, as a function of position? Show us how you set up the integral that you are having trouble with.
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