Threads Tagged with electrodynamics Thread / Thread Starter Last Post Replies Views > A very long straight wire carries a current I. A plane rectangular coil of high resistance, with sides of length $a$... Y 11:11 AM TSny 12 684 Introductory Physics Homework 1. The problem statement, all variables and given/known data So, we can presumably write that m = g L, where L is... Feb24-14 04:54 AM \Tau_{\mu\ni} 1 117 Advanced Physics Homework I am studying Laplace's equation in my electrodynamics course (using griffiths intro to electrodynamics). I am... Feb16-14 11:56 AM dauto 3 180 Classical Physics Hello. What's the best edition of Jackson's Classical Electrodynamics? Thank you. Feb15-14 01:47 AM vanhees71 4 3,288 Science & Math Textbooks In a Wikipedia article about two-photon physics it is stated: "From quantum electrodynamics it can be found that... Jan31-14 09:08 PM Simon Bridge 1 300 Quantum Physics I hope I am posting this question in the correct forum. I am in the second course in an upper level Electricity... Jan27-14 10:52 PM jesse73 5 386 Academic Guidance The full Lagrangian for electrodynamics ##\mathcal{L}## can be expressed as ##\mathcal{L}=\mathcal{L}_\textrm{field}+... Jan21-14 10:21 AM dextercioby 2 278 Special & General Relativity So I am an unexperienced undergrad but the other day I had a few thoughts which are most likely crazy. I'm just... Jan5-14 07:10 AM "pi"mp 4 1,054 Beyond the Standard Model Hello. I'd like to know, does anybody know any information about finding boudary conditions for E, H vectors in... Jan1-14 01:14 AM Simon Bridge 1 187 Classical Physics 1. The problem statement, all variables and given/known data suppose every charged particle carried electric and... Dec3-13 10:48 AM voko 1 416 Introductory Physics Homework Dear friends, can some one tell me the method to learn electrodynamics??(iam a postgraduate student). Thank you Nov28-13 09:07 AM Lakshmi N 3 616 Academic Guidance If we consider an arbitrary time varying current I\left(t\right) flowing through an arbitrary antenna, then is the... Nov17-13 06:43 AM avjt 0 283 Classical Physics Hi, I think I'm missing something with how a parallel plate waveguide works. In the picture I've shown below,... Nov6-13 01:30 AM jasonRF 3 429 Classical Physics Hi, I'd love a to have a more graphical understanding of how a plane wave interacts with a boundary. I know the... Nov1-13 12:03 AM Jano L. 3 406 Classical Physics 1. The problem statement, all variables and given/known data An infinite wire of linear charge density \lambda lies... Oct29-13 04:42 PM Screwdriver 4 473 Introductory Physics Homework How did Jackson arrange his set of problems in this famous book Electrodynamics? I mean, does he move according to the... Oct14-13 05:32 PM clem 9 1,089 Science & Math Textbooks 1. The problem statement, all variables and given/known data A conducting spherical shell of radius R is cut in... Oct11-13 02:43 PM retro10x 3 419 Advanced Physics Homework 1. The problem statement, all variables and given/known data Find the potential inside and outside a uniformly... Sep29-13 11:04 AM TSny 3 353 Introductory Physics Homework Classically as well as quantum-mechanically, the source of the Maxwell field is the electron/four-current (Dirac... Sep27-13 02:16 PM dauto 9 692 General Physics 1. The problem statement, all variables and given/known data A sphere of radius R, centered at the origin, carries... Sep27-13 03:07 AM vanhees71 8 536 Advanced Physics Homework Hi All, Thanks again to all the great mentors and contributors to this forum. I wanted to ask a question about... Sep12-13 04:56 AM UltrafastPED 2 348 Classical Physics Hi, I am trying to gain a better understanding of the classical model of electrodynamics, so what I mean by this... Sep9-13 05:29 AM voko 1 403 Classical Physics Theorem in electromagnetism says if the divergence \nabla\cdot E and the curl \nabla\times E are known, then E is... Aug31-13 06:47 AM DaleSpam 2 354 Classical Physics Hi, I've been looking at some animations of plane waves, and I really cannot see why a plane wave's electric field... Aug24-13 08:49 AM frogguy 2 300 Classical Physics I'm not sure if this is the appropriate forum for my question as I actually am studying this as part of electrical... Aug16-13 09:38 AM Claude Bile 5 348 Classical Physics As the only thread I've ever started before (http://www.physicsforums.com/showthread.php?t=369328 ) attracted a lot of... Aug8-13 08:10 AM akhmeteli 76 4,556 Quantum Physics I have so far encountered the notion 'state' in classical mechanics, thermodynamics and quantum mechanics. I have,... Aug3-13 05:36 PM Jolb 1 250 Classical Physics I stumbled across this book in the library and was intrigued by fact that it seems oriented towards engineers (it goes... Jul5-13 04:53 PM thegreenlaser 0 646 Science & Math Textbooks Hello all, First, to tell you a little about my background, I have just finished my undergraduate degree in geology... Jun29-13 11:38 PM smodak 11 956 Science & Math Textbooks While using the ∇ operator, most of the times we can treat it as a vector. I came across a few formulae(basically... Jun28-13 02:04 PM jink 4 452 Calculus Hello, I am trying to derive the equation for the B-field due to a moving charge. ~ Griffiths Chapter 10, equation... Jun17-13 09:06 AM Sparky_ 2 362 Classical Physics Hi, i've had electrodynamics on my learning to do list for quite some time, but every time i start i get frustrated... Jun15-13 12:46 PM vanhees71 2 482 Classical Physics 1. The problem statement, all variables and given/known data I am currently studying for a quiz and then following a... May11-13 11:08 AM vela 4 892 Advanced Physics Homework 1. The problem statement, all variables and given/known data How does one solve the tensor differential equation for... May8-13 10:12 PM Chestermiller 1 281 Advanced Physics Homework 1. The problem statement, all variables and given/known data A sphere magnet of radius a has permanent uniform... Apr19-13 04:39 PM TSny 1 450 Advanced Physics Homework 1. The problem statement, all variables and given/known data A gauge transformation is defined so as to leave the... Apr15-13 07:53 PM BruceW 3 427 Advanced Physics Homework 1. The problem statement, all variables and given/known data Calculate \phi_{ret} for a charge moving with... Apr9-13 08:24 PM Shinobii 2 423 Advanced Physics Homework The angular momentum of the electromagnetic field is defined as, $$\vec{L_{em}} = \int \vec{l_{em}} d^3r.$$ ... Apr9-13 03:44 PM Shinobii 2 334 Advanced Physics Homework I do not understand the following from Griffiths’ Electrodynamics – page 424 Equation 10.21. \nabla p = \dot{p}... Apr8-13 10:56 AM Sparky_ 6 732 Classical Physics Hello, I am a bit confused on how to get this into the proper form,  \begin{eqnarray} \vec{J} &=&... Apr5-13 03:26 PM Shinobii 0 354 Classical Physics