attraction,attractive force- the force by which one object attracts another electromagnetism- magnetism produced by an electric current; "electromagnetism was discovered when it was observed that a copper wire carrying an electric current can magnetize pieces of iron or steel near it" ...
Note that the magnetic force of the electromagnetic brake may cause stuck iron powder or effects on measuring instruments, sensors or other devices. ckd.co.jp 在电磁制动器附近,由于磁力的作 用而 可能导致铁粉等的附着, 以及对检测装置、传感器、设备类造成影响,敬请注意。 ckd.co.jp Another decisiv...
The first term is contributed by theelectric field. The second term is the magnetic force and has a direction perpendicular to both the velocityvand the magnetic fieldB. The magnetic force is proportional toqand to the magnitude ofv×B. In terms of the angle ϕ betweenvandB, the magnitude...
Figure 1. The magnetic field exerts a force on a current-carrying wire in a direction given by the right hand rule 1 (the same direction as that on the individual moving charges). This force can easily be large enough to move the wire, since typical currents consist of very large number...
The region surrounding the magnet in which the force of the magnet can be felt is called the extent of themagnetic field. Its SI unit is Tesla and it is named after the American Scientist Nikola Tesla. Gauss is the smaller unit of themagnetic field. ...
whereas the force between like poles is repulsive. The magnetic field is sometimes referred to as magneticinductionor magnetic flux density; it is always symbolized byB. Magnetic fields are measured in units oftesla(T). (Another unit of measure commonly used forBis thegauss, though it is no ...
In this paper, a theory of force-free magnetic field useful for explaining the formation of convex closed sets, bounded by a magnetic separatrix in the plasma, is developed. This question is not new and has been addressed by many authors. Force-free magnetic fields appear in many laboratory...
2 This phase difference can be calculated in terms of frequency shift from the following equation29: δ=Δfcs/ω where Δfcs is the difference in resonant frequencies between fat and water protons, which is 3.5 ppm, and δ is the difference in precessional frequencies (220 Hz at 1.5 T). ...
The strength of an electric field is defined in terms of the force that is exerted on a charged particle in that field. We use the same procedure for defining the strength of a magnetic field. But there is an important difference between the two cases. A stationary charge will experience ...
In this sense, we mention that the driving force of magnetization dynamics is voltage control of magnetic anisotropy effect, although current cannot be completely zero in experiments. As mentioned in “Methods”, typical value of current I flowing in MTJ is on the order of 1 \(\mu\)A, ...