How Strong Must a Magnetic Field Be to Attract a Magnetic Item from 1 Meter?

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SUMMARY

The strength of a magnetic field required to attract a magnetic item from a distance of 1 meter depends on several factors, including the item's mass, magnetic susceptibility, magnetization, and magnetic hysteresis. For accurate calculations, one must consider the material type, its saturation state, volume, and mass. While any magnetic field can attract a magnetic object, external forces must be minimal for effective movement. In environments like zero gravity and a vacuum, even a small magnet can exert a noticeable pull on a magnetic object from a distance.

PREREQUISITES
  • Understanding of magnetic susceptibility
  • Knowledge of magnetization principles
  • Familiarity with magnetic hysteresis
  • Basic physics of forces and motion
NEXT STEPS
  • Research the effects of magnetic susceptibility on attraction strength
  • Study the principles of magnetic hysteresis in different materials
  • Explore calculations for magnetization in various substances
  • Investigate the impact of environmental conditions on magnetic force
USEFUL FOR

Physicists, engineers, and anyone interested in the practical applications of magnetism and magnetic field strength in various environments.

Neutrino98
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How strong must the magnetic field be to attract an magnetic item from 1 meter plus?
 
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To answer that question I believe you would have to know at least the mass, magnetic susceptibility, magnetization, and possibly the magnetic hysterisis of the object you're trying to move. For an approximate answer I believe you would at least need to know what kind of material it is, whether it is "saturated," its volume, and its mass.
 
Last edited:
A magnetic field of any strength will attract any magnetic object as long as the forces that prevent the object from moving are low enough. On a kitchen table a small magnet may not move a magnetic object 1 meter away but in zero gravity and a vacuum it should slowly pull the object to the magnet.
 

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