Timeline for Force on a dielectric
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 28, 2019 at 12:58 | comment | added | user203191 | @JánLalinský thank you for pointing that out. I missed a -ve sign while deriving the expression. I'll delete the previous comment so that I might not confuse others. | |
| Apr 27, 2019 at 10:54 | comment | added | Ján Lalinský | @LoopBack what you're suggesting is the opposite of what Varun Chandra described. Where did you get that idea? It is false, battery or no battery, if capacitor plates are charged, the slab is attracted to the plates. | |
| Aug 13, 2016 at 16:55 | answer | added | Lelouch | timeline score: 3 | |
| Aug 13, 2016 at 16:09 | comment | added | Ján Lalinský | But the video claims that slab is being pulled into the capacitor by electric forces, which is right. So if your book claims it is being pushed out of it, this is in contradiction to the video. It seems you would like to ask a different question though: why is the slab not being pushed out of the capacitor, since that would decrease the electrostatic energy of the capacitor? | |
| Aug 13, 2016 at 15:14 | comment | added | Varun Chandra | I have a link to a video relevant to this topic : physicsgalaxy.com/lectures/1/24/1071/… | |
| Aug 13, 2016 at 15:06 | history | edited | Varun Chandra | CC BY-SA 3.0 |
added 344 characters in body
|
| Aug 13, 2016 at 15:05 | comment | added | Ján Lalinský | Could you post a link or the relevant section of the text from the book? It seems to me the author is wrong on this. | |
| Aug 13, 2016 at 14:58 | comment | added | Varun Chandra | Because my book says so , it also says that when there is no battery connected the dielectric will get attracted inside the capacitor . I can understand why it gets attracted as the charges on the capacitor plates will attract those charges that are induced in the dielectric . But I fail to understand why it gets repelled when the capacitor is connected to a battery | |
| Aug 13, 2016 at 14:45 | comment | added | Ján Lalinský | Why do you think the slab is repelled? | |
| Aug 13, 2016 at 12:49 | history | asked | Varun Chandra | CC BY-SA 3.0 |