IMECH-IR  > 力学所知识产出(1956-2008)
导体中自由体电荷的衰减规律
朱如曾
Source Publication大学物理
1992
Volume11Issue:2Pages:9-11
ISSN1000-0712
Abstract本文指出,许多电动力学教科书中所给出的导体(本文指金属导体)中自由体电荷的衰减规律不适用于良导体,原因是所涉及的电场变化频率远比电子与晶格的碰撞频率为大,因而无色散欧姆定律实际并不适用.本文采用欧姆定律的推广形式导出较普遍的结论;并指出,在讨论定频的低频电磁波与导体的相互作用问题时,可直接证明电荷密度的实频分量■(ω实)为零,而不必涉及σ(t)的衰减规律.此外,本文还指出电荷衰减过程中不会出现电子的“超光速运动”矛盾.
Keyword欧姆定律 导体 衰减规律 自由体 无色散 体电荷 电荷衰减 电动力学 定频
Language中文
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/35848
Collection力学所知识产出(1956-2008)
Corresponding Author朱如曾
Recommended Citation
GB/T 7714
朱如曾. 导体中自由体电荷的衰减规律[J]. 大学物理,1992,11,2,:9-11.
APA 朱如曾.(1992).导体中自由体电荷的衰减规律.大学物理,11(2),9-11.
MLA 朱如曾."导体中自由体电荷的衰减规律".大学物理 11.2(1992):9-11.
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