Why does the magnetic moment of a nucleon line up with a uniform magnetic field?

  1. I thought the external magnetic field had to vary within an object in order for that object's magnetic moment to line up with the field.
     
  2. jcsd
  3. marcusl

    marcusl 2,117
    Science Advisor
    Gold Member

    Classically, a magnetic moment experiences a torque when in an external magnetic field that forces it to line up with the field. This applies to nuclear moments as well.
     
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