We all have seen magnets and are very fond of playing with them. Also, we have seen how the same side of the magnets repels each other. But, the magnetic field is the field of current that attracts and repels the magnet. Furthermore, in this topic, you will learn about the magnetic ...
1074 Accesses 1 Citation Explore all metrics Abstract This work is based on the variational principle for magnetic field lines introduced in 1983 by Cary and Littlejohn. The action principles for magnetic field lines and for Hamiltonian mechanics are recalled to be analogous. It is shown that the...
All formulas in this paper are given in Hartree atomic units. The magnetism-related units follow the SI-based convention, i.e., the atomic unit of magnetic field is ħ/ea02, where e is the unit charge and a0 is the Bohr radius. ...
We present a derivation of simple formulas for the evaluation at any point of space of the magnetic field produced by a spin or a paramagnetic orbital current when Cartesian Gaussian basis functions are used, as is often the case in quantum chemistry. These formulas can be useful to plot the...
2009. Magnetic field produced by a parallelepipedic magnet of various and uniform polarization. Prog. Electromagn. Res. 98: 207-219.R. Ravaud and G. Lemarquand, "Magnetic field produced by a parallelepipedic magnet of various and uniform polarization," Progress In Electromag. Research, vol. ...
The analytical expression of the magnetic field distribution produced by a single PM segment is retrieved in Section 3. In particular, in Section 3.1, the initial assumptions of the method are introduced, together with its starting formulas. In Section 3.2 and Section 3.3, current sheets with nor...
Formulas in Reference [7] tell us that the conversion factor is C ≅ 19.5 for degree l = 1 , leading to an estimated mean value of the dipole magnetic field in the outer core of 3.02 mT, or 11.7 times that of average geomagnetic dipole field at the CMB, which is 0.259 mT, based...
Magnetic moment, also known as magnetic dipole moment, is the measure of the object's tendency to align with a magnetic field. The objects have a tendency to place themselves in such a way that the magnetic moment vector becomes parallel to the magnetic
(event) horizon for all causal physical processes. Nevertheless, the primordial universe could have been very turbulent at the time of QED and QCD phase transitions. This means that any magnetic field coupled to the primeval plasma could have been processed by magnetohydrodynamic (MHD) effects. ...
Step 2: Write the formula for the axial magnetic field BAThe axial magnetic field BA due to a bar magnet at a distance r from its center is given by the formula:BA=μ0m⋅24πr3 Step 3: Relate BE and BANow we can relate BE and BA using the formulas derived in the previous steps...