Magnetic Lines of Force

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Magnetic Lines of Force

</dt>
Imaginary lines so drawn in a region containing a magnetic field to be everywhere tangent to the magnetic field intensity vector if in vacuum or nonmagnetic material, or parallel to the magnetic induction vector if in a magnetic medium. See electric lines of force. </dd>
As so defined, these lines of force are merely convenient artifices for delineating the geometry of a magnetic field. They are given quantitative significance in magnetic theory by associating one line of force per square centimeter normal to the force for every oersted of field intensity (in vacuum), for every gauss of magnetic induction (in magnetic media). </dd>

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use