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Magnetic field of force?

 
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Feb26-04, 08:28 PM   #1
 

Magnetic field of force?

Hey, I am sure how to answer this question,

How far does the magnetic field of force extend?

Thanks.
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Feb27-04, 07:00 AM   #2
 
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(F decreases as 1/r2 and that is never 0 no matter how large r is.)
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