試題詳解

15. A capacitor of capacitance Ci is charged to a potential difference V. The terminals of the charged capacitor are then connected to those of an uncharged C₂ capacitor. Which statement is correct for this procedure?
(A) The original charge of the system is C₁V；
(B) The final potential difference across each capacitor is C₁ V/ (C₁ + C₂)；
(C) The total electrical energy of the system decreases when the two capacitors are connected；
(D) All；
(E) None.