A parallel plate capacitor of capacitance C is connected to a battery and is charged to a potential difference V. Another capacitor of capacitance 2C is ismilarly charged to a potential difference 2V. The charging battery is now disconnected and the capacitors are connected in parallel to each other in such a way that the poistive terminal of one is connected to the negative terminal of the other. The final energy of the configuration is

Options

A. zero
B. ` (3)/(2) CV^(2) `
C. ` (25)/( 6 ) CV^(2)`
D. ` (9)/(2) CV^(2)`

Answer

B