Timeline for Electromagnetic waves should stop while encountering a conducting shell?
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 25, 2014 at 9:13 | vote | accept | Sagnik | ||
| Nov 25, 2014 at 8:57 | comment | added | ProfRob | @Floris - read it again. | |
| Nov 25, 2014 at 8:28 | comment | added | Floris | @RobJeffries Yes I did wonder about making a comment to that effect. I upvoted your answer in an attempt to show "there is more to this". But I wonder if you wrote your comment backwards. "entirely radial field" will always be excluded? That contradicts (it seems) what you wrote in your answer - that a radial field can make it through. And I'm not sure either case is true for any frequency. | |
| Nov 25, 2014 at 8:21 | comment | added | ProfRob | @Floris Although your answer is accepted by the OP, it seems to have reinforced a misconception about Gauss's law. Consider the case of a time-dependent field that is entirely radial. You can make this any frequency you want, it will always be excluded from the interior. Conversely, any tangential field at any frequency is possible (if you can get it in there). | |
| Nov 25, 2014 at 7:17 | comment | added | ProfRob | @Sagy No Gauss's law applies to time-varying fields too. | |
| Nov 25, 2014 at 7:05 | vote | accept | Sagnik | ||
| Nov 25, 2014 at 9:13 | |||||
| Nov 25, 2014 at 7:00 | comment | added | Sagnik | Yes, now I understand that Gauss' law can be only applied in the case where the electric field is static w.r.t time. That was my primary misconception, right ? | |
| Nov 25, 2014 at 6:37 | history | answered | Floris | CC BY-SA 3.0 |