1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Levitating a rod - magnetic field/forces

  1. Dec 2, 2007 #1
    1. The problem statement, all variables and given/known data

    What magnetic field strength will levitate the 2.0 g wire in the figure?

    [​IMG]


    2. Relevant equations

    F = ILB


    3. The attempt at a solution

    Solving for B, the formula becomes:

    B = F/(IL)

    F = 2*9.8 = 19.6
    IL = (1.5)*(0.10) = 0.15
    B= 19.6/0.015 = 130.666666666.....

    which comes out as incorrect

    what am i doing wrong?

    thanks!
     
  2. jcsd
  3. Dec 4, 2007 #2
    ...anybody know???

    lol i have to submit this in a few hours!! :(
     
    Last edited: Dec 4, 2007
  4. Dec 4, 2007 #3

    rock.freak667

    User Avatar
    Homework Helper

    convert the 2g to kg
     
  5. Dec 4, 2007 #4
    i was thinking of doing that...but i wasnt sure..but yea that is correct

    THANKS!!!!!!!
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Levitating a rod - magnetic field/forces
  1. Force on a rod (Replies: 2)

Loading...