Two identical capacitors, have the same capacitance C. One of them is charged to potential `V_1` and the other `V_2`. The negative ends of the capacitors are connected together. When the poistive ends are also connected, the decrease in energy of the combined system is

Options

A. `(1)/(4)C(V_(1)^(2) -V_(2)^(2))`
B. `(1)/(4)C(V_(1)^(2) + V_(2)^(2))`
C. `(1)/(4)C(V_(1) -V_(2))^(2)`
D. `(1)/(4) C(V_(1) +V_(2))^(2)`

Answer

C

Explanation

`Delta U` = decrease in potential energy.