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

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The strength of a magnetic field required to attract a magnetic item from 1 meter depends on several factors, including the object's mass, magnetic susceptibility, magnetization, and magnetic hysteresis. Knowing the material type, whether it is magnetically saturated, its volume, and mass is essential for an approximate calculation. Any magnetic field can attract a magnetic object if opposing forces are minimal. In a low-resistance environment, such as zero gravity, a small magnet can effectively pull an object from a distance. Understanding these variables is crucial for determining the necessary magnetic field strength.
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.
 
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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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