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The Force on a North Pole, → F = M → B , Parallel to the Field → B . Does It Contradict Our Earlier Knowledge that a Magnetic Field Can Exert Forces Only Perpendicular to Itself? - Physics

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प्रश्न

The force on a north pole, `vecF = mvecB` , parallel to the field `vecB` . Does it contradict our earlier knowledge that a magnetic field can exert forces only perpendicular to itself?

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उत्तर

Yes, it seems to contradict with our earlier knowledge that a magnetic field can exert forces only perpendicular to itself.

`vecF = mvecB`

here ,

 `vecB` = Magnetic field

m = Magnetic charge
For a positive magnetic charge, force is along the magnetic field.
For a negative magnetic charge, force is opposite to the magnetic field.
Thus, it contradicts the notion that a magnetic field can exert forces only perpendicular to itself.

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अध्याय 14: Permanent Magnets - Short Answers [पृष्ठ २७५]

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एचसी वर्मा Concepts of Physics Vol. 2 [English] Class 11 and 12
अध्याय 14 Permanent Magnets
Short Answers | Q 6 | पृष्ठ २७५

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