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Biot-Savart Law: Find formula for B at general pt (x, y, z)

  1. Nov 4, 2009 #1
    1. The problem statement, all variables and given/known data
    See attachment for Problem Statement.
    Biot-Savart Vector Problem.JPG

    2. Relevant equations

    3. The attempt at a solution
    Can anyone help me start this problem, or clarify what is being asked? I have no idea where to begin.
  2. jcsd
  3. Nov 5, 2009 #2

    Andrew Mason

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    Science Advisor
    Homework Helper

    The first part is simply asking you to evaluate B in terms of x,y,z. This involves expressing [itex]\hat{k} \times \vec r[/itex] and r in terms of x, y and z.

    In the second part the key is to determine when [itex]\hat{k} \times \hat r[/itex] will be maximum (cross product of the unit vectors in the k direction and the r direction).

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