- #1
cgiustini
- 11
- 0
Hello,
I'm reading through section 6.2.2 of https://ocw.mit.edu/courses/electri...s-spring-2009/readings/MIT6_013S09_chap06.pdf on page 157. I understand all the math, but I have a conceptual questions that I don't seem to be able to answer myself:
The paragraph under equation 6.2.11 mentions electric pressure differences across the capacitor plates that are responsible for pushing the plates apart laterally. However, previous parts of the text talk about capacitor plate overlap and ignoring fringing fields, suggesting that we are only concerned with the electric field in the overlapping region, which in my mind should always be normal to the plates if we are making that simplification. In my mind, my two previous sentences contradict each other. Can anyone explain what I may be missing? Where does the lateral force originate from if we are only concerned with the simplified capacitor made up of the overlapping parts of the plates?
Thanks,
Carlo
I'm reading through section 6.2.2 of https://ocw.mit.edu/courses/electri...s-spring-2009/readings/MIT6_013S09_chap06.pdf on page 157. I understand all the math, but I have a conceptual questions that I don't seem to be able to answer myself:
The paragraph under equation 6.2.11 mentions electric pressure differences across the capacitor plates that are responsible for pushing the plates apart laterally. However, previous parts of the text talk about capacitor plate overlap and ignoring fringing fields, suggesting that we are only concerned with the electric field in the overlapping region, which in my mind should always be normal to the plates if we are making that simplification. In my mind, my two previous sentences contradict each other. Can anyone explain what I may be missing? Where does the lateral force originate from if we are only concerned with the simplified capacitor made up of the overlapping parts of the plates?
Thanks,
Carlo