Excess charge in capacitors connected in series

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SUMMARY

The discussion focuses on the phenomenon of excess charge in capacitors connected in series, specifically two identical capacitors charged to the same amount. When connected by opposite electrodes, the voltage across the open ends doubles, leading to a scenario where one plate has excess electrons and the other has an excess of positive charge. Despite the presence of these charges, no current flows upon connection, raising questions about the behavior of the inner plates, which are now part of a single conductive material. The discussion suggests that understanding this behavior may benefit from exploring concepts related to inserting metal into parallel plate capacitors.

PREREQUISITES
  • Understanding of capacitor fundamentals, including charge distribution.
  • Knowledge of series and parallel connections in electrical circuits.
  • Familiarity with electric fields and their effects on charges in dielectric materials.
  • Basic principles of electrostatics, including the behavior of excess charge.
NEXT STEPS
  • Research the concept of "inserting metal into parallel plate capacitor" to understand charge distribution.
  • Study the effects of series and parallel configurations on capacitor behavior.
  • Explore the principles of electrostatics and charge displacement in dielectric materials.
  • Learn about the mathematical modeling of capacitors in series, including voltage and charge relationships.
USEFUL FOR

Students and professionals in electrical engineering, physics enthusiasts, and anyone interested in understanding the behavior of capacitors in series and their charge dynamics.

Maciej Orman
I have a hard time comprehending excess charge in capacitor plates.
Let's say we have two identical capacitor and we charged them to identical amount of charge.
Next we connect them in series by opposite sign electrodes and we get double the voltage on the open ends.
Now a single capacitor has excess charge on both plates in which one has excess electrons and the other excess of positive charge which originate from protons in nucleus.
When connecting those two capacitors one electrode has excess of electrons and the other excess of positive charges yet no current flows up on connection. Also now we have two inner plates connected and there should be no excess charge on them since it is now one single pierce of conductive material...
What really happens up on connecting of the two inner plates of charged capacitors and is there an excess of charge on them?
 
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Maybe, it will be helpful for an understanding when you search for something similar to “inserting metal into parallel plate capacitor”.
 
Yes, I got it there are both positive and negative charges in equal amount displaced symmetrically by the fields in dielectric materials...
Sorry about lame post...
 

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