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Physics-

General

Easy

Question

Magnetic intensity for an axial point due to a short bar magnet of magnetic moment M is given by

$\frac{μ_{0}}{4 π} \times \frac{M}{d^{3}}$
$\frac{μ_{0}}{4 π} \times \frac{M}{d^{2}}$
$\frac{μ_{0}}{2 π} \times \frac{M}{d^{3}}$
$\frac{μ_{0}}{2 π} \times \frac{M}{d^{2}}$

The correct answer is: $fraction numerator mu subscript 0 end subscript over denominator 2 pi end fraction cross times fraction numerator M over denominator d to the power of 3 end exponent end fraction$

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