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Webassign Find Strength of Magnetic Field using Java App

  1. Jun 14, 2014 #1
    1. The problem statement, all variables and given/known data

    A 10nC, 1µg particle is fired into a magnetic field as shown. Distances are in millimeters, time is in seconds. What is the strength of the field? (See my picture for additional information and my worked solution)

    2. Relevant equations
    f= mv^2 /r F(from B field) = qvb

    3. The attempt at a solution
    see picture for my work. I don't see what I am doing wrong.

  2. jcsd
  3. Jun 15, 2014 #2


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    2017 Award

    Hello Erwin,
    Wow, you sure have a wide screen. Doesn't prevent you from falling into the trap of forgetting to use proper units. Your expression for B is quite correct. Convert one of the factors to SI units and you are in business.

    Hint: 78 T is incredibly huge for a magnetic field strength.
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