电位移 Electric displacement field
(重定向自Electric Displacement)


在电磁学里,电位移是出现于马克士威方程组的一种矢量场,可以用来解释电介质内自由电荷所产生的效应。电位移以方程序定义为
;
其中,是电常数,
是电场,
是电极化强度。
单词 | Electric Displacement |
释义 |
Electric Displacement
中文百科
电位移 Electric displacement field(重定向自Electric Displacement)
![]() ![]() 在电磁学里,电位移是出现于马克士威方程组的一种矢量场,可以用来解释电介质内自由电荷所产生的效应。电位移
其中,
英语百科
Electric displacement field 电位移(重定向自Electric Displacement)
![]() ![]() In physics, the electric displacement field, denoted by D, is a vector field that appears in Maxwell's equations. It accounts for the effects of free and bound charge within materials. "D" stands for "displacement", as in the related concept of displacement current in dielectrics. In free space, the electric displacement field is equivalent to flux density, a concept that lends understanding to Gauss's law. It has the SI units of coulomb per squared metre (C m). |
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