$A$ capacitor is fully charged with a battery and then disconnected. $A$ dielectric is then inserted into the capacitor. How do the charges on the surface of the dielectric and the outer surface of the plates of the capacitor change, respectively?

  • A
    Increases, decreases
  • B
    Decreases, increases
  • C
    Increases, remain unchanged
  • D
    Remains unchanged, increases

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