On an Electrostatic Field produced by varying Magnetic Induction
On an Electrostatic Field produced by varying Magnetic Induction
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关于由变化的磁感应强度产生的静电场
DOI：
10.1088/1478-7814/10/1/320
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发表时间：
1888
期刊：
影响因子：
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通讯作者：
O. Lodge
中科院分区：
文献类型：
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作者：
O. Lodge
(1) 在其轴上旋转一个长条形磁铁，在其磁场中悬挂一种两端带相反电荷的象限静电计针，并寻找偏转。 T！他被认为是电磁铁的铁托。 (2) 建造一个圆柱形或鼓形的马蹄形磁铁，就像两个铁轮在中殿相连，并缠绕;那里有电线； (3) 使用变化的磁铁而不是移动的磁铁（很可能这是菲茨杰拉德教授在大约十年前我与他的一次谈话中建议的）；例如，将带电的金箔悬挂在电磁体极片边缘之间，并在励磁电流开始或停止时通过显微镜观察。我的笔记本里有很多关于这个实验的其他观点，但这些足以说明这个想法。在我看来，这个实验的重要性（正确或错误）在于麦克斯韦理论和一些当代德国理论之间可能的关键标准；因为它似乎处理的不是开路，即。根本没有电路。
(1) To spin a long bar-magnet on its axis, suspending in its field a sort of quadrant-electrometer needle charged oppo-sitely at either end, and to look for a deflexion.! T! he ‘iron tors of an electromagnet was supposed. to serve.(2) To construct a cylindrical or drum-shaped horseshoemagnet like two iron wheels joined at the nave, and wound with; wire there; to spin this on its axis and suspend a charged pith-ball between the two rims t.(3) To use a varying magnet instead of a moving one [quite probably this was suggested by Prof. Fitzgerald in a conversation I had with him some ten years back]; for instance, to suspend a charged gold leaf between the edges of the pole-pieces of an electromagnet, and watch it through a microscope when the exciting current is started or stopped. Many other vwieties of the experiment are in my note-books, but these are enough to show the idea. The importance of the experiment seemed to me (rightly or wrongly) to lie in a possible crucial criterion between Maxwell’s theory and some of the contemporary German theories; because it seemed to deal with something less than an open circuit, viz. no circuit at all.