Magnetic field, a vector field in the neighborhood of a magnet, electric current, or changing electric field, in which magnetic forces are observable. Magnetic fields such as that of Earth cause magnetic compass needles and other permanent magnets to lin
Each of the two wires carrying currents has a magnetic field, as if it were a magnet.相关知识点: 试题来源: 解析 参考答案携带电流的两根导线中,每一根都有一个磁场,它好像是一块磁铁。你的回答:未回答老师正在批阅! 解析:本句中,应正确理解“as if”从句中使用了虚拟语气。
Magnetic permeability, change in the resultant magnetic field inside a material compared with the magnetizing field in which the given material is located. or the magnetic flux density B established within the material divided by the magnetic field stren
currentsdiodeselectric potentialmagnetic fieldsniobiumresonancesuperconductivitytinThe research on the relationship between current, voltage and magnetic field for a superconducting double-point-contact diode has been extended by investigating its behaviour in its own resonant electro-magnetic radiation field, ...
In the paper measurements of the magnetic field Bsz produced by shielding currents induced in an YB2Cu3Ox single crystal at 77 K are presented and analyzed. The sample magnetic field is measured by a microsize Hall sensor. The sample magnetic field Bsz was studied in 3 positions of the single...
目录 收起 一些电和磁的相爱相杀 安培环路定律(Ampère‘s Law – Relation between electric currents and magnetic fields) 安培定律的补充:麦克斯韦方程 因为马上考试,最近几天会尽快把内容码完。 一些电和磁的相爱相杀 电和磁其实是一对相爱相杀的欢喜冤家,横向对比阴阳,性质不同但有各种相似性,相互促进...
One single-layer and two four-layer example winding structures are used to illustrate the impact of excitation frequency on the magnetic field intensity and current density distributions in transformer windings. By plotting the distributions as phasors in three-dimensional isometric plots, greater insight...
For the ferromagnetic/nonmagnetic multi-layer structure, such as (Ga,Mn)As/AlGaAs/(Ga,Mn)As17,18, the density of the carriers and the coherence between magnetic layers can be controlled by temperature, electric field et al., which can be used to the manufacture of magnetic or optical ...
Quasistatic major current loops at a rate of 0.1 A/sec exhibited differences in measured forces of up to 12.6% between increasing and decreasing current trajectories. A dimensionless curve fit was developed for the data, with an error of approximately 4 percent. A bimodal error distribution was ...
Iron saturates magnetically at about 2–2.5 T, and its nonlinear ferromagnetic relationship between inducing field strength and magnetization intensity necessitates the use of very large currents in the energizing coils, sometimes up to hundreds of amperes. The magnetic force felt by a mineral ...