Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

I Net force on a Halbach Array in a uniform magnetic field

  1. Jun 11, 2017 #1
    I have been unable to determine whether a Halbach Array of permanent magnets would experience a net force in a uniform magnetic field.
     
  2. jcsd
  3. Jun 13, 2017 #2

    mfb

    User Avatar
    2016 Award

    Staff: Mentor

    Without motion, the only thing that experiences a net force in a uniform magnetic field would be magnetic monopoles, and they haven't been observed (as free particles) yet.
     
  4. Jun 13, 2017 #3
    Is that true? How about the classic compass needle? It's a normal dipole and it experiences a rotational force in a (to a first degree) uniform field.
     
  5. Jun 13, 2017 #4

    mfb

    User Avatar
    2016 Award

    Staff: Mentor

    It is only torque, it is not a net force (that would accelerate the center of mass).
     
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: Net force on a Halbach Array in a uniform magnetic field
Loading...