Content deleted Content added
No such user (talk | contribs) |
No such user (talk | contribs) |
||
Line 105:
::::::
::::::I didn't figure that one out. My argument is that ideal capacitors don't have leads, and so by definition can't have lead resistance. But also, in the cases that count, lead resistance is so low as not to matter. At low frequencies, 0 in the limit, dielectric conductance still matters. In EPROM and Flash memory, bits are stored as charge on capacitors. It can stay for many years, as leakage is low enough. At high frequencies, where lead resistance might matter, lead inductance reactance is much bigger. As noted in [[Telegrapher's equations]], at high frequencies it is L and C that are significant, at low frequencies R and G. No mention of capacitor series resistance or inductance parallel resistance. [[User:Gah4|Gah4]] ([[User talk:Gah4|talk]]) 04:17, 30 May 2024 (UTC)
::::::{{tq|Unless I misunderstand, one of the participants of this discussion has stated that G_dielectric and R_lead cannot both be zero at the same time.}} – Yes, we have a misunderstanding here, since we aren't using the same [mental] model. Your model on the above image is technically correct, but not the only possible one, nor the first thing I'd imagine.<br>Simply, the model described in the article (and in minds of Gah4 and myself) does not include R<sub>lead</sub> (nor ESL) since it's negligible and irrelevant for most intents and purposes. What ''is'' important (and often used in finer capacitor analysis) is the value of G<sub>dielectric</sub>, which is zero for ideal capacitors, and its inverse value R<sub>dielectric</sub> is thus obviously infinite (and that's what my sentence referred to).
::::::As for inductors, I'm having in mind the simple model of R and X in series, and I'm having a hard time even to imagine where you'd put a leakage conductance in it, and which effect it would account for. Granted, [[parasitic capacitance]] is a thing, but we should not get that far in an introductory sentence. [[User:No such user|No such user]] ([[User talk:No such user|talk]]) 08:01, 30 May 2024 (UTC)
| |||