Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

[Phys-L] : Magnetic Field at an Axial and Equatorial displacement from a bar magnet

We seem to be discussing how the magnetic field varies (externally) with angular displacements...

This shows a factor of two between polar and equatorial fields??

Brian Whatcott Altus OK Indian Territory.


*Magnetic field due to a bar magnet*

(i) at axial position (p):

B = \dfrac{\mu _0}{4 \pi} \dfrac{2M}{r^3}

(ii) at equatorial position (Q)


\dfrac{\mu _0}{4 \pi} \dfrac{M}{r^3}

(from )