IB物理知识点讲解|5.1-2 Definition of electric field strength 43 0 06:27 App IB物理 IB Physics 知识点讲解|5.4 Magnetic field by a current-carrying straight wire 112 0 41:05 App IB Physics 物理 A.3 之Power 习题课 832 0 38:31 App IB Physics IB物理|如何写作物理IA Physics IA - Analysi...
Around a permanent magnet or a wire carrying a steady electric current in one direction, the magnetic field is stationary and referred to as a magnetostatic field. At any given point its magnitude and direction remain the same. Around an alternating current or a fluctuating direct current, the...
Magnetic field, a vector field in the neighborhood of a magnet, electric current, or changing electric field, in which magnetic forces are observable. Magnetic fields such as that of Earth cause magnetic compass needles and other permanent magnets to lin
百度试题 结果1 题目2. Put a wire in a magnetic(magnet) field, the wire will move. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
The program is freeware, available at the author's web site. Several experiments with results suitable for undergraduate student labs are presented.doi:10.1088/0143-0807/27/4/018PonikvarDEuropean Journal of PhysicsPonikvar D 2006 The measurement of the magnetic field of a wire using a personal ...
When current flows in a wire, a magnetic field is created around the wire. To visualize this, take your right hand, curl the fingers, and stick the thumb straight out. Now, point your thumb in the direction of the current flowing in the wire (using conventional current where current flows...
摘要: We illustrate the role of magnetic forces in lifting a current-carrying wire by discussing the various forces acting on the positive ions and the electrons that compose the wire.关键词: Conduction electrons Magnetic fields Electric currents Geomagnetism and paleomagnetism Surface charge ...
Force on a Wire in a Magnetic Field, Nature 246, 208 - Lowes - 1973 () Citation Context ... can be calculated via the interaction of the current and magnetization in the wire with only the fields present before the wire was added to the problem, as emphasized in sec. 35 of [18] ...
百度试题 结果1 题目When an electric current___through a wire, a magnetic field appears around 相关知识点: 试题来源: 解析 flows null 反馈 收藏
A magnetic field may be produced through a coil of wire by winding it on the magnetic circuit shown in Fig. 8. From Project Gutenberg This simple experiment proved to Oersted that there was a magnetic field produced by the current in the conductor. From Project GutenbergQuiz...