How Far Does a Magnetic Field Extend?

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SUMMARY

The magnetic field of force extends indefinitely as it is a fundamental force of nature. Its strength diminishes according to the inverse square law, specifically decreasing as 1/r², meaning it never truly reaches zero regardless of distance. The effective range of detection for a magnetic field typically spans several meters, influenced by the source's strength and the surrounding environment.

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Hey, I am sure how to answer this question,

How far does the magnetic field of force extend?

Thanks.
 
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(F decreases as 1/r2 and that is never 0 no matter how large r is.)
 


The magnetic field of force extends indefinitely, as it is a fundamental force of nature. However, the strength of the magnetic field decreases as you move further away from its source. The exact distance that the magnetic field extends depends on the strength of the source and the surrounding environment. In general, the magnetic field can be detected and measured up to several meters away from its source.
 

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