电力线的场与感应磁场 磁力线的场与感应电场
首发时间:2006-08-08
摘要:电磁场可以脱离相应的电荷或电流而存在,因而电磁场会在其周围空间激发产生相应的场;电流会在其周围空间激发产生磁场,磁力线与电力线同电流一样,也会在其周围空间激发产生相应的场,磁力线激发产生磁场辅量,电力线激发产生电场辅量;假设它们之间的对应关系都满足毕奥萨伐尔公式形式,由安培环路定理可以得出磁场辅量的环路定理与电场辅量的环路定理,进而推出空间感应电磁场满足的关系. 由惠更斯-菲涅尔的次波原理推知,电场在空间一经产生,就会在空间以光速激发相应的场-电场辅量,磁场也会在空间中以光速激发相应的场-磁场辅量,变化的电场辅量产生磁场,变化的磁场辅量产生电场;进而导出位移电流产生磁场,位移磁流产生电场的结论,本文推导和发现电磁波的本质是电场辅量与磁场辅量的传播而激发产生,且电磁波的电磁场强度的大小是与电场辅量或磁场辅量的变化频率成正比的。 本论文还通过空间磁场的空间分布推导出空间磁场辅量分布公式,进而推导出洛仑兹力公式,并发现洛仑兹力就是电场力,但公式的系数有误,应被修正,即:F = 1/2 qv×B.
关键词: 电场辅量 ; 磁场辅量; 电磁场; 感应电场; 感应磁场;电磁波
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The field of the lines of force of electric fieldAnd the field of magnetic induction line
Abstract:Electromagnetic field can exist escaping from corresponding electric charge or electric currents ; As a result, electromagnetic field will induce corresponding field in its surrounding space. The electric current will induce the magnetic field in its surrounding space. Once electric field exist in the space,it will induce the correponding field by velocity of light in its surrounding space. Once magnetic field exist in the space,it will induce the correponding field by velocity of light in its surrounding space. magnetic induction line induce wB, the lines of force of electric field induce wE.The relation about magnetic induction line with wB or the lines of force of electric field with wE conform the formula form of biot-savart
Keywords: WE WB electromagnetic field induced electric field magnetic field.
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