通电螺线管

利用矢势A和标势φ推出了毕-萨定律和库仑定律的一种广义形式，并应用它计算出了通电螺线管的磁场B和电场E。

By the use of vector potential A and scalar potential φ, a generalized form of Biot-Savart and Coulomb 's Law is given , and the magnetic field B and electronical field E of helix are achieved .

通电螺线管空间点的磁场

The Magnetic Field at the Spot of Galvanized Solenoid

设计的均匀磁场发生装置由电源、螺线管、水循环温控装置等部分组成，重点介绍了由通电螺线管提供的磁场的特性、水循环温控装置的设计。

The uniform magnetic field devices is made up of power , solenoids , the water cycle , focusing on the solenoid and the water cycle temperature control device design .

在该盘上与转轴同心地放着一有限长的通电螺线管，在盘的边缘均匀对称固定着若干带电金属小球。

In concentric with the shaft of the plate to lay on a finite length solenoid power , the edge of the plate with a number of symmetrical fixed charged metal ball .

通过对点磁极间相互作用的分析，证明了在理想条件下库仑磁作用定律只对直线型通电细螺线管才成立。计及涡流时直流截锥头螺管电磁铁动态吸力的计算

It is verified that Coulomb 's magnetic law establishes only to straight thin solenoidal circuits . CALCULATING THE DYNAMIC PULL OF DC TRUNCATED CONE SOLENOIDAL ELECTROMAGNET WITH THE EFFECT OF EDDY CURRENT IN CONSIDERATION

给出了一种利用霍尔效应测量螺线管磁场的新方法：用数字电压表取代电位差计等诸多仪器测量霍尔电势差，进而计算出通电长直螺线管内轴向磁场的分布。

Digital voltmeters , instead of voltage meters and other instruments , are used to measure Hull voltage and then to calculate the axial magnetic induction distribution in charged straight spiral tubes .