1/17/2024 0 Comments Magnetic dipole momentThe 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. Magnetic Dipole Moment is is a vector quantity and can be defined as the magnetic strength (force) exerted by a magnet or a current carrying loop in terms of torque on electric current carrying components. The magnetic field of a magnetic dipole is proportional to its magnetic dipole moment. A magnetic dipole is a pair of magnetic poles as the dimensions of source are reduced to zero keeping the magnetic moment constant. The direction of the magnetic moment points from the south to north pole of the magnet (inside the magnet). The magnetic moment may therefore be considered to be a vector. The strength (and direction) of this torque depends not only on the magnitude of the magnetic moment but also on its orientation relative to the direction of the magnetic field. Objects with larger magnetic moments experience larger torques when the same magnetic field is applied. The magnetic dipole moment of an object determines the magnitude of torque that the object experiences in a given magnetic field. Higher-order terms (such as the magnetic quadrupole moment) may be needed in addition to the dipole moment for extended objects. The magnetic dipole component is sufficient for small enough magnets or for large enough distances. However, an electron's magnetic dipole moment is not due to a current loop, but to an intrinsic property of the electron. More precisely, the term magnetic moment normally refers to a system's magnetic dipole moment, the component of the magnetic moment that can be represented by an equivalent magnetic dipole: a magnetic north and south pole separated by a very small distance. Similar to magnetic current loops, the electron particle and some other fundamental particles have magnetic dipole moments, as an electron generates a magnetic field identical to that generated by a very small current loop.
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