Static Magnetic Dipole : Strength of Magnetic Field Calculator

Posted by Dinesh on

A magnetic dipole is a closed circulation of electric current. A simple example of this is a single loop of wire with some constant current through it.

An electric dipole is a separation of positive and negative charges. The simplest example of this is a pair of electric charges of equal magnitude but opposite sign, separated by some (usually small) distance. A permanent electric dipole is called an electret.

Formula:

B = μ0 m x1+3sin2λ

where,
μ0 = permeability of free space (µ0 = 4π×10−7 H·m−1 ≈ 1.2566370614…×10−6H·m−1 or N·A−2)
m = dipole moment (VADM=virtual axial dipole moment)
r = distance from the center
λ = magnetic latitude from the dipole axis (equal to 90° − θ) where θ = magnetic colatitude
B = strength of the field