- #1
darksyesider
- 63
- 0
I am havingA LOT of trouble with self-inductance and have spent 10+ hours watching videos on youtube, and I'm still getting nowhere.
From what I understand:
self inductance = the ability of a thing (not sure what) to resist the change in voltage (and thereby causing current to change more steadily. (is this right?)
In my textbook derivation of the self-inductance of a coaxial cable, they took a cross section like here:
http://www.phys.nthu.edu.tw/~thschang/notes/GP32.pdf (page 8)
I don't really get this at all intuitively, because can't you choose any cross section?? How do you know where to find the surface which you want to get the flux of?
I guess the problem is that, I feel as if you need to multiply the result by 2pi*r to get the whole entire cylinder, however this is not true.
Please help (and if you happen to know a good analogy for self-inductance, please share because i am very confused )
From what I understand:
self inductance = the ability of a thing (not sure what) to resist the change in voltage (and thereby causing current to change more steadily. (is this right?)
In my textbook derivation of the self-inductance of a coaxial cable, they took a cross section like here:
http://www.phys.nthu.edu.tw/~thschang/notes/GP32.pdf (page 8)
I don't really get this at all intuitively, because can't you choose any cross section?? How do you know where to find the surface which you want to get the flux of?
I guess the problem is that, I feel as if you need to multiply the result by 2pi*r to get the whole entire cylinder, however this is not true.
Please help (and if you happen to know a good analogy for self-inductance, please share because i am very confused )