The magnetic field due to a small magnetic dipole of magnetic moment M, at distance r from the centre on the equatorial line is given by (in MKS system)
1
\(\frac {\mu_0}{4\pi} \times \frac {M}{r^2}\)
2
\(\frac {\mu_0}{4\pi} \times \frac {M}{r^3}\)
3
\(\frac {\mu_0}{4\pi} \times \frac {2M}{r^2}\)
4
\(\frac {\mu_0}{4\pi} \times \frac {2M}{r^3}\)
5
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