Search results
Results From The WOW.Com Content Network
r is the distance from the center, measured in metres ... ignoring the delta function. In a real electric dipole, however, the charges are physically separate and the ...
is the normal distance between the two parallel faces of the magnets; is the distance between the magnetic dipole axes of the two magnets. With their magnetic dipole aligned, the force can be computed analytically using elliptic integrals. [7]
The electric dipole moment is a measure of the separation of positive and negative electrical charges within a system: that is, a measure of the system's overall polarity. ...
Because magnetic monopoles do not exist, the magnetic field at a large distance from any static magnetic source looks like the field of a dipole with the same dipole moment. For higher-order sources (e.g. quadrupoles) with no dipole moment, their field decays towards zero with distance faster than a dipole field does.
Magnetic dipole–dipole interaction, also called dipolar coupling, refers to the direct interaction between two magnetic dipoles. Roughly speaking, the magnetic field of a dipole goes as the inverse cube of the distance, and the force of its magnetic field on another dipole goes as the first derivative of the magnetic field. It follows that ...
The magnetic moment also expresses the magnetic force effect of a magnet. The magnetic field of a magnetic dipole is proportional to its magnetic dipole moment. The dipole component of an object's magnetic field is symmetric about the direction of its magnetic dipole moment, and decreases as the inverse cube of the distance from the object.
where = () is the distance between the charges and = ˙ ˙ is the relative velocity. Wilhelm Eduard Weber confirmed Gauss's hypothesis in numerous experiments. [ 28 ] [ 29 ] [ 30 ] By means of Weber electrodynamics it is possible to explain the static and quasi-static effects in the non-relativistic regime of classical electrodynamics without ...
The ratio between the true spin magnetic moment and that predicted by this model is a dimensionless factor g e, known as the electron g-factor: = . It is usual to express the magnetic moment in terms of the reduced Planck constant ħ and the Bohr magneton μ B : μ = − g e μ B L ℏ . {\displaystyle {\boldsymbol {\mu }}=-g_{\text{e}}\,\mu ...