If we connect a capacitor and a battery in the same circuit, what makes the charge move until the voltage on the capacitor is the same as voltage on battery?

  • $\begingroup$ Why do charges move? Next, why would they stop moving? $\endgroup$ – Jon Custer Jun 22 '16 at 14:26
  • $\begingroup$ @JonCuster Charges move due to electrical field. They stop moving after the electrical fields from the capacitor and battery cancel each other. correct? $\endgroup$ – The Capacitor Jun 22 '16 at 14:36
  • $\begingroup$ And if there is not net field, what does that mean about the voltages on the two? $\endgroup$ – Jon Custer Jun 22 '16 at 14:41
  • $\begingroup$ @JonCuster then integral of Eds along path from positive plate to positive side of battery is zero, means the same potential at both sides is the same. And the same goes if we do Eds from negative plate to negative side of battery. So they have same potential difference = same voltage. $\endgroup$ – The Capacitor Jun 22 '16 at 14:58

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