Results 301 to 310 of about 229,340 (317)
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General Relativity and Gravitation, 1990
A solution of the Einstein-Maxwell equations representing a massive magnetic dipole is investigated. Problems of its physical interpretation are discussed and test particle motion is studied.
David Vokrouhlický, Vladimir Karas
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A solution of the Einstein-Maxwell equations representing a massive magnetic dipole is investigated. Problems of its physical interpretation are discussed and test particle motion is studied.
David Vokrouhlický, Vladimir Karas
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American Journal of Physics, 1971
In this paper we derive the expression for force on a magnetic dipole in an elementary way but without using “poles.” The equation F = (μ ·∇)B follows from concepts of electromagnetism already familiar to the first-year student. This is accomplished by working with forces on current elements and grouping terms to attain recognizable vector identities ...
Jack B. Greene, Frank G. Karioris
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In this paper we derive the expression for force on a magnetic dipole in an elementary way but without using “poles.” The equation F = (μ ·∇)B follows from concepts of electromagnetism already familiar to the first-year student. This is accomplished by working with forces on current elements and grouping terms to attain recognizable vector identities ...
Jack B. Greene, Frank G. Karioris
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2020
In the previous chapter we assumed that particle sizes are much smaller than the radiation wavelength. This gave us the possibilities of considering the field within the limits of the particle as being independent of the coordinates and analyzing the influence of a single electric field on a substance.
Vitaliy V. Shtykov, Sergey M. Smolskiy
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In the previous chapter we assumed that particle sizes are much smaller than the radiation wavelength. This gave us the possibilities of considering the field within the limits of the particle as being independent of the coordinates and analyzing the influence of a single electric field on a substance.
Vitaliy V. Shtykov, Sergey M. Smolskiy
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Dipole‐Dipole Interaction in Fine Particle Magnets
physica status solidi (b), 1990Contrairement a l'approche precedente qui consistait a caracteriser chaque particule par sa coercitivite propre on considere ici des amas inclus dans un environnement. Les spheres de plus proche voisinage sont decrites comme des particules discretes alors que les autres sont considerees par leur champ de ...
V. Christoph, K. Elk
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GEOPHYSICS, 1959
Two nomograms or alignment charts are presented for the solution of the magnetic‐dipole equations for magnetic intensity over a dipping dipole. The two charts are used in conjunction with each other and are as accurate as is needed for field work. One of these charts will be found useful also in other calculations involving [Formula: see text].
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Two nomograms or alignment charts are presented for the solution of the magnetic‐dipole equations for magnetic intensity over a dipping dipole. The two charts are used in conjunction with each other and are as accurate as is needed for field work. One of these charts will be found useful also in other calculations involving [Formula: see text].
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Physics of Fluids, 2017
This work describes a numerical model to compute the translational and rotational motion of N spherical magnetic particles settling in a quiescent viscous fluid under creeping flow condition. The motion of the particles may be produced by the action of gravitational forces, Brownian thermal fluctuations, magnetic dipole-dipole interactions, external ...
R. G. Gontijo, F. R. Cunha
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This work describes a numerical model to compute the translational and rotational motion of N spherical magnetic particles settling in a quiescent viscous fluid under creeping flow condition. The motion of the particles may be produced by the action of gravitational forces, Brownian thermal fluctuations, magnetic dipole-dipole interactions, external ...
R. G. Gontijo, F. R. Cunha
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The force on a magnetic dipole
American Journal of Physics, 1988The classical magnetic force on a magnetic dipole depends upon the model for the dipole. The usual electric current loop model for a magnetic dipole leads to the force F=∇(m⋅B) on a magnetic dipole m in a magnetic field B. The separated magnetic charge model for a magnetic dipole leads to the force F=(m⋅∇)B on a magnetic dipole.
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Microwave and Optical Technology Letters, 2005
AbstractA very compact antenna with magnetic dipole radiation properties is presented. It is horizontally polarized HP with low cross polarization level XPR, it has omnidirectional radiation with a very low ripple in the azimuth cut plane. With a compact design (quarter wavelength square) it is suitable for integration into small WLAN devices.
C. Delaveaud, L. Rudant
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AbstractA very compact antenna with magnetic dipole radiation properties is presented. It is horizontally polarized HP with low cross polarization level XPR, it has omnidirectional radiation with a very low ripple in the azimuth cut plane. With a compact design (quarter wavelength square) it is suitable for integration into small WLAN devices.
C. Delaveaud, L. Rudant
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American Journal of Physics, 1962
A recent book rejects the amperian-current model of a magnetic dipole and accepts the magnetic-charge model, because the first model would lead to inconsistencies in the interpretation of Poynting's theorem. It is shown that the inconsistencies are only apparent.
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A recent book rejects the amperian-current model of a magnetic dipole and accepts the magnetic-charge model, because the first model would lead to inconsistencies in the interpretation of Poynting's theorem. It is shown that the inconsistencies are only apparent.
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The Electric Dipole Moment of a Moving Magnetic Dipole
American Journal of Physics, 1971The fact that a magnetic dipole μ moving with velocity βc has an electric dipole moment p = β×μ/c has made periodic appearance in the literature but the importance of this fact and its general utility have not been given sufficient expression. It is the purpose of this paper to show how to derive the equation p=β×/c and then to use it for a simple ...
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