PHET Magnetism
... this website for examples: http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/elemag.html ...
... this website for examples: http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/elemag.html ...
Faraday`s Law of Induction
... • If the magnet is held stationary and the coil is moved toward or away from the magnet, the galvanometer needle will also deflect. • From these observations, you can conclude that a current is set up in the circuit as long as there is relative motion between the magnet and the coil. • This current ...
... • If the magnet is held stationary and the coil is moved toward or away from the magnet, the galvanometer needle will also deflect. • From these observations, you can conclude that a current is set up in the circuit as long as there is relative motion between the magnet and the coil. • This current ...
Spin-current-induced electric field
... spin-down electrons are the same, and both kinds of electrons move in the same direction under an external electric field. The total spin-current I s ⫽ (I ↑ ⫺I ↓ ) is therefore zero, and only the charge current I ec ⫽e(I ↑ ⫹I ↓ ) is relevant. When a system includes ferromagnetic materials, or unde ...
... spin-down electrons are the same, and both kinds of electrons move in the same direction under an external electric field. The total spin-current I s ⫽ (I ↑ ⫺I ↓ ) is therefore zero, and only the charge current I ec ⫽e(I ↑ ⫹I ↓ ) is relevant. When a system includes ferromagnetic materials, or unde ...
5 Paramagnetic Electron Resonance
... In the following, we will use small letters for individual electrons and capital letters for multiple electrons. It follows directly from the comparison of equ.(5.09) with equ.(5.02) and equ.(5.04) that gL = 1 for orbital magnetism. This has been experimentally demonstrated with an accuracy of 10−4. ...
... In the following, we will use small letters for individual electrons and capital letters for multiple electrons. It follows directly from the comparison of equ.(5.09) with equ.(5.02) and equ.(5.04) that gL = 1 for orbital magnetism. This has been experimentally demonstrated with an accuracy of 10−4. ...
Neutron magnetic moment
The neutron magnetic moment is the intrinsic magnetic dipole moment of the neutron, symbol μn. Protons and neutrons, both nucleons, comprise the nucleus of atoms, and both nucleons behave as small magnets whose strengths are measured by their magnetic moments. The neutron interacts with normal matter primarily through the nuclear force and through its magnetic moment. The neutron's magnetic moment is exploited to probe the atomic structure of materials using scattering methods and to manipulate the properties of neutron beams in particle accelerators. The neutron was determined to have a magnetic moment by indirect methods in the mid 1930s. Luis Alvarez and Felix Bloch made the first accurate, direct measurement of the neutron's magnetic moment in 1940. The existence of the neutron's magnetic moment indicates the neutron is not an elementary particle. For an elementary particle to have an intrinsic magnetic moment, it must have both spin and electric charge. The neutron has spin 1/2 ħ, but it has no net charge. The existence of the neutron's magnetic moment was puzzling and defied a correct explanation until the quark model for particles was developed in the 1960s. The neutron is composed of three quarks, and the magnetic moments of these elementary particles combine to give the neutron its magnetic moment.