Hatsu notes that after the switch is closed, for any battery voltage, the current eventually stops. How does Christian explain the reason the current stops? "The electric field in the wire applies a force on electrons in the wire immediately outside each plate; this force causes the electrons to move onto the negative plate and off of the positive plate. When the potential difference across the capacitor plates equals the battery voltage, the current stops." "The current stops when the battery runs out of electrons." "The electric field in the wire applies a force on electrons in the wire immediately outside each plate; this force causes the electrons to move onto the plate. When there is no more room on the plate for electrons to fit, the current stops." "The current stops only when the switch is opened