Two identical short bar magnets, each having magnetic moment $M,$ are placed a distance of $2d $ apart with axes perpendicular to each other in a horizontal plane. The magnetic induction at a point midway between them is
Two identical short bar magnets, each having magnetic moment $M,$ are placed a distance of $2d $ apart with axes perpendicular to each other in a horizontal plane. The magnetic induction at a point midway between them is
- [IIT 2000]
- A
$\frac{{{\mu _0}}}{{4\pi }}(\sqrt 2 )\frac{M}{{{d^3}}}$
- B
$\frac{{{\mu _0}}}{{4\pi }}(\sqrt 3 )\frac{M}{{{d^3}}}$
- C
$\left( {\frac{{2{\mu _0}}}{\pi }} \right)\,\frac{M}{{{d^3}}}$
- D
$\frac{{{\mu _0}}}{{4\pi }}(\sqrt 5 )\frac{M}{{{d^3}}}$
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- [AIIMS 1995]
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