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Magnetic moment strength (from lower to higher orders of magnitude) Factor (m 2 ⋅A) Value Item 10 −45: 9.0877 × 10 −45 m 2 ⋅A [1] Unit of magnetic moment in the Planck system of units. 10 −27: 4.330 7346 × 10 −27 m 2 ⋅A: Magnetic moment of a deuterium nucleus 10 −26: 1.410 6067 × 10 −26 m 2 ⋅A: Magnetic moment of a proton ...
The unit for magnetic moment in International System of Units (SI) base units is A⋅m 2, where A is ampere (SI base unit of current) and m is meter (SI base unit of distance). This unit has equivalents in other SI derived units including: [3] [4]
Magnetic flux density: B: Measure for the strength of the magnetic field tesla (T = Wb/m 2) M T −2 I −1: pseudovector field Magnetic moment (or magnetic dipole moment) m: The component of magnetic strength and orientation that can be represented by an equivalent magnetic dipole: N⋅m/T L 2 I: vector Magnetization: M: Amount of magnetic ...
The International System of Units, or SI, [1]: 123 is a decimal and metric system of units established in 1960 and periodically updated since then. The SI has an official status in most countries, including the United States , Canada , and the United Kingdom , although these three countries are among the handful of nations that, to various ...
More precisely, the term magnetic moment normally refers to a system's magnetic dipole moment, which produces the first term in the multipole expansion [note 1] of a general magnetic field. Both the torque and force exerted on a magnet by an external magnetic field are proportional to that magnet's magnetic moment. The magnetic moment is a ...
M is the magnetization of the material (the magnetic dipole moment per unit volume), with unit amperes per meter, and; H is the magnetic field strength, also with the unit amperes per meter. χ v is therefore a dimensionless quantity. Using SI units, the magnetic induction B is related to H by the relationship
The Weiss magneton was experimentally derived in 1911 as a unit of magnetic moment equal to 1.53 × 10 −24 joules per tesla, which is about 20% of the Bohr magneton. In the summer of 1913, the values for the natural units of atomic angular momentum and magnetic moment were obtained by the Danish physicist Niels Bohr as a consequence of his ...
The gamma (γ) a unit of magnetic flux density, corresponding to 1 nT. [14] The debye (D) is a unit of electric dipole moment equal to 10 −18 statC⋅cm, corresponding to ~ 3.335 64 qC⋅m. The buckingham (B) is a unit of electric quadrupole moment equal to 10 −26 statC⋅cm 2.