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Magnetic Force Directions

  1. Jul 16, 2010 #1
    QUESTION 1

    1. The problem statement, all variables and given/known data

    Determine the magnetic force acting on an proton (m = 1.67 x 10-27 kg) moving at 2.9 x 106 m/s in a magnetic field of 6.8 T. The proton is moving south. The magnetic field points straight down.

    2. Relevant equations

    F = qvBsinø

    3. The attempt at a solution

    I assumed that down means into the earth, and south means bearing to the south pole, so ø is 90°. I solved the equation and F = 3.2E-12N

    However, I can't seem to figure out the direction of the force.


    QUESTION 2

    1. The problem statement, all variables and given/known data

    Determine the direction of force that the proton experiences in travelling through the field. Remember that the X represents that the magnetic field points into the page.

    R90OJ.png

    2. Relevant equations

    none that I can think of

    3. The attempt at a solution

    I don't even know where to start. :(
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Jul 16, 2010 #2
    You can use Fleming's Left Hand Rule to figure it out
     
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