# Magnetic Force of a current carrying wire loop on a magnetic object let's say we have a current carrying wire loop WITHOUT AN EXTERNAL MAGNETIC FIELD. It produces a magnetic field on its own. what would the magnetic field and force of this loop on a charge or a magnetic object(or whatever) outside the loop? I always find the equation of F = IBL which is the force on the on loop from an external magnetic field but i can never find the force that the loop itself produces. Like i am trying to calculate the force from the loop on an iron ball or find the magnetic field produced by just the loop but outside the loop. If i can get the magnetic field outside the loop then i can derive the force that i need using F = Del(m X B).

Magnetic Force of a current carrying wire loop on a magnetic object
let's say we have a current carrying wire loop WITHOUT AN EXTERNAL MAGNETIC FIELD. It produces a magnetic field on its own. what would the magnetic field and force of this loop on a charge or a magnetic object(or whatever) outside the loop?
I always find the equation of F = IBL which is the force on the on loop from an external magnetic field but i can never find the force that the loop itself produces.
Like i am trying to calculate the force from the loop on an iron ball or find the magnetic field produced by just the loop but outside the loop. If i can get the magnetic field outside the loop then i can derive the force that i need using F = Del(m X B).
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Zara Pratt
Magnetic force is experienced by moving electric charges. You need find out the magnetic field produced by that ring or that current carrying object at a point in space and then use the formula $\stackrel{\to }{F}=q\stackrel{\to }{v}×\stackrel{\to }{B}$
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omvamen71
well its the same case as in electrostatics. a point charge kept isolated can never feel the force due to its own electric field. like same way ANY source of a field can never be influenced by its own field. also recall that a value of magnetostat ic field diverges at its own location.(appears singularity)