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Intensity of magnetic field and torque on a bar magnet - class-XII

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Magnetic induction due to a short bar magnet on its axial line is inversely proportional to cube of distance of the point.

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True
💡 Explanation:

Magnetic induction due to a short bar magnet on its axial line,

$B=\dfrac{\mu _0 M}{4\pi d^3}$
Magnetic induction due to a short bar magnet on its axial line is inversely proportional to cube of distance of the point.
$B\propto\dfrac{1}{d^3}$

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