Timeline for Electrostatic values where there are some charge
Current License: CC BY-SA 4.0
7 events
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| May 3, 2019 at 11:02 | history | bounty ended | CommunityBot | ||
| Apr 29, 2019 at 10:39 | comment | added | ohneVal | It is true that the factor 1/2 relies on the surface being closed, but the averaging is generic, it is only useful if you actually need to assign a value of the field exactly at an interface, so you will have some non-zero field on both sides over 2 still, as Griffith's puts it "Averaging is really just a device for removing the contribution of the patch itself." | |
| Apr 29, 2019 at 10:31 | history | edited | ohneVal | CC BY-SA 4.0 |
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| Apr 27, 2019 at 12:20 | comment | added | Ján Lalinský | The factor of 1/2 is there because we deal with a closed surface. Other shapes such as half-sphere could have different factors. I see no basis for taking average of the two fields in the general case. | |
| Apr 27, 2019 at 12:01 | comment | added | pasaba por aqui | This answer could be the accepted one if it includes a proof that the energy necessary to contruct a charged shell (or charged wire or sphere, if easier) is finite. | |
| Apr 27, 2019 at 11:51 | comment | added | my2cts | This does not answer the question. It address calculation on a discrete grid, where care must be taken to correctly account for singularities. | |
| Apr 25, 2019 at 17:25 | history | answered | ohneVal | CC BY-SA 4.0 |