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A parallel plate capacitor of capacitance \( \mathrm{C} \) is connected to a battery and is charged to a potential difference \( \mathrm{V} \). Another capacitor of capacitance \( 2 \mathrm{C} \) is similarly charged to a potential difference 2V. The charging battery is now disconnected and the
P capacitors are connected in parallel to each other in such a way that the positive

W terminal of one is connected to the negative terminal of the other. The final energy of the configuration is :
A zero
B \( \quad \frac{3}{2} \mathrm{CV}^{2} \)
C \( \frac{25}{6} \mathrm{CV}^{2} \)
D \( \frac{9}{2} \mathrm{CV}^{2} \)
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