1. Limited time only! Sign up for a free 30min personal 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!

Biot Savart Law Calculation problems

  1. May 4, 2013 #1
    1. The problem statement, all variables and given/known data
    Find the magnetic field from a proton at location r, with velocity v, if the cross-product of vxr is <0,0,6.2e4> and the magnitude of r is 7.34e-2


    2. Relevant equations

    B⃗ =μ/4π * qv x r /r^2

    3. The attempt at a solution
    Substituting in 10^7 for μ/4π
    1.6e-19 for q
    <0,0,6.2e4> for v x r
    and (7.34e-2)^2 for r^2

    I get 1.8413e-5. This is not the right answer, so I must be doing something wrong. I thought you simply had to substitute in the variables and calculate. Could someone give me a hint?
     
  2. jcsd
  3. May 4, 2013 #2

    SteamKing

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    How are we supposed to check your work if you don't provide any units?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Biot Savart Law Calculation problems
  1. Biot-Savart law question (Replies: 23)

Loading...