47. An ideal parallel-plate capacitor connected to a battery of voltage V0, it has charge of magnitude
Q0 on its plates. The plates are pulled apart to a separation from d to 2d while the capacitor remains
connected to the battery. After the plates are 2d apart, what are the magnitude of the charge on
the plates and the potential difference between them?
(A) 0.5Q0, 0.5V0 (B) 0.5Q0, V0 (C) Q0, V0 (D) 2Q0, V0 (E) 2Q0, 2V0