descriptive and mathematical. The electric field is the driver of the EM wave power. The source of the EM wave makes a sinusoidal electric field continuously then the changing electric field makes a magnetic field instantly in all paths of its propagation, so the magnetic field is sinusoidal ...
Magnetic fields are created by permanent magnets or by currents, i.e., by moving electric charges. A moving electric charge is surrounded by an electric field and a magnetic field. In its rest frame, an electric charge generates an electric field, but no magnetic field. Electric and magnetic...
3.Electric field,magnetic fieldand electromagnetic fieldenvironmental questions;电场、磁场和电磁场的环境问题 英文短句/例句 1.The force exerted by a magnetic field.磁力由磁场施加的力 2.The electric and magnetic fields have been amalgamated into electromagnetic field tensor.电场和磁场合并为电磁场张景。 3...
美 英 na.磁场 网络磁场是磁性场;磁场上;电磁场 复数:magnetic fields 英汉 英英 网络释义 na. 1. 磁场
crossed field amplifier 正交场放大器 crossed field amplifier 【电】 正交场放大器 electric field 电场,电力场 magnetic field n.磁场 相似单词 Crossed adj. 十字的 crossed n. 1.长曲棍球之球棒 magnetic adj. 1.像磁铁的,有磁性的 2.磁的,磁性的 3.富有吸引力的,有魅力的 electric a. 1....
There has been some discussion about whether the force on a current loop in a time-variant electromagnetic field is different from the force on a magnetic-charge dipole. Several workers have concluded that the force is the same. In this ... HA Haus,P Penfield - 《Physica》 被引量: 9发表...
as引导定语从句.B与…同样的,强调的是类型的相同.C如此…以致于…,后跟从句.D相同的、哪个,不符合.由magnetic field 磁场和electric field电场,可知,应该用the same; as,选B. 点评 形容词的种类有很多,要根据具体语境选择适当的形容词.抓住关键词语,分析用法,完成试题.练习册系列答案 ...
Electric and Magnetic Fields (EMF) RAPID Engineering Program, Project 7: Development of Field Exposure Models The purpose of this project was to develop a conceptual model for estimating magnetic field (EMF) personal exposure (PE) of individuals or groups and const... TD Bracken,RF Rankin,JA ...
相关知识点: 试题来源: 解析 For electromagnetic waves, electric field and magnetic field are always perpendicular to each other and also perpendicular to the direction of propagation of electromagnetic wave. 反馈 收藏
Magnetic field is supplied by an electromagnet . Reciprocating movement and Brayton magnetic refrigeration cycle are adopted. 此系统利用电磁体提供磁场,采用往复运动方式,实现布雷顿循环. 来自期刊摘选 22. Without them you can't know what electric flux or magnetic field are, and on and on. 没有它们你...