|
所在平台: Coursera |
课程主页: https://www.coursera.org/learn/electrodynamics-electric-magnetic-fields
课程评论：没有评论
课程名称：电动力学：电场与磁场 课程概述：本课程是“电动力学：入门”和“电动力学：电场分析”的延续，主要介绍静磁学并将其与之前学到的内容联系起来。此外，我们将涵盖电动势的基础以及如何利用电动势构建不同的设备。 学习者将能够： - 运用电场的解法，并与其他学科（如热传导、扩散、膜建模）相关联 - 理解马普斯定律在静磁学中的应用 - 了解与磁力相关的能量和量子力学基础 通过将本讲座中的概念与其他领域（如热/质量扩散）相结合，并描述其潜在应用，我们希望使本课程对学生的职业生涯具有实用价值。由于本课程涵盖基础概念和设备构建，我们旨在使其对研究人员和行业专业人士均有帮助。本课程的方法补充了传统方式，提供了电与磁的物理学较为完整的处理，并加入了费曼独特的关键方法，以便于理解物理宇宙的全貌。此外，本课程独特地提供了电动力学知识与其在材料科学、信息技术、电气工程、化学、化工、能量存储、能量收集及其他相关材料领域的实际应用之间的联系。 课程大纲： 1. **电静态类比** - 介绍如何使用电动力学解法寻找适用于其他领域的解答，并叙述电动力学与热传导、膜物理、氚扩散等自然现象的相似性，通过这些比较来深化对其他物理学的理解。 2. **静磁学** - 介绍静磁学及不同几何体外部的磁场，并探讨如何利用相对论理解磁力，同时对比电静态与静磁学的相似性。 3. **不同情境下的磁场** - 引入磁向量势的概念，类似于电势，解释磁势的分布以及如何在求解电场时使用它，同时简要介绍磁偶极子和比奥-萨伐尔定律。 4. **评估向量势** - 在本模块的前半部分，我们探讨在电动力学背景下的能量与功，并解释磁向量势（A）的实用性及其作为真实场的原因，并与量子机械电动力学相结合，揭示在静态之外有用的方程。 5. **感应电流** - 最后一个模块主要涵盖电动势、感应电流及其在设备创建中的应用，展示力、电流与磁ism如何相互作用以驱动机械。
Name:Electrostatic Analogs
Description:This module covers the how electrodynamic solutions can be used to find solutions applicable to other fields. We describe how electrodynamics is comparable to heat transfer, membrane physics, neutron diffusion, and other natural phenomenon. Through these comparisons, understanding of other physics can be realized.
Name:Magnetostatics
Description:This module introduces magnetostatics, and the magnetic field outside of different geometries, and how relativity can be used to understand magnetic forces. To lead into this, we will describe how to characterize current in a wire and while doing this, attention will again be drawn to the similarities between electrostatics and magnetostatics
Name:The Magnetic Field in Various Situations
Description:This lecture introduces the concept of the magnetic vector potential, which is analogous to the electric potential. We explain the distribution of the magnetic potential and how to use it when solving for the electric field. The magnetic dipole is also introduced and the Biot-Savart law is described.
Name:Assessing the Vector Potential
Description:In the first part of this module, we explore the topic of energy and work in the context of electrodynamics. Then we explain the usefulness of the magnetic vector potential (A) and why it is a real field. Finally, we tie these concepts with quantum mechanical electrodynamics, and reveal equations that are useful beyond the scope of statics.
Name:Induced Currents
Description:In the final module, we mostly cover the electromotive force, induced currents, and how they may be applied to create devices. We show how forces, electric currents, and magnetism all interact in order to operate machinery.
This course is a continuation of Electrodynamics: An Introduction and Electrodynamics: Analysis of Electric Fields. Here, we will introduce magnetostatics and relate it to the material we learned previously. In addition, we will cover the basics of the electromotive force and how it can be used to build different devices. Learners will • Be able to use solutions from electric fields and relate them to other subjects (heat transfer, diffusion, membrane modeling) • Understand Maxwell's equations in the context of magnetostatics • Be introduced to energy and quantum mechanics relating to magnetic forces By relating the concepts in this lecture to other fields, such as heat/mass diffusion, and describing their potential applications, we hope to make this course applicable to our students careers. Because this course covers both basic concepts and device construction, we have designed it to be useful for researchers and industry professionals alike. The approach taken in this course complements traditional approaches, covering a fairly complete treatment of the physics of electricity and magnetism, and adds Feynman’s unique and vital approach to grasping a picture of the physical universe. Furthermore, this course uniquely provides the link between the knowledge of electrodynamics and its practical applications to research in materials science, information technology, electrical engineering, chemistry, chemical engineering, energy storage, energy harvesting, and other materials related fields.
