A Parallel Plate Capacitor of Capacitance C0 Has Plates of Area

Multiple Choice

A parallel plate capacitor of capacitance C0 has plates of area A with separation d between them.When it is connected to a battery of voltage V0, it has charge of magnitude Q0 on its plates.It is then disconnected from the battery and the plates are pulled apart to a separation 2d without discharging them.After the plates are 2d apart, the magnitude of the charge on the plates and the potential difference between them are:

A) Q0, V0
B) Q0, V0
C) Q0, V0
D) Q0, 2V0
E) 2Q0, 2V0