Two identical capacitors have the same capacitance C . One of them is charged to potential V 1 and the other to V 2 . If their like-charged plates are then connected together, then the decrease in energy of the combined system is

Question

Two identical capacitors have the same capacitance C . One of them is charged to potential V 1 and the other to V 2 . If their like-charged plates are then connected together, then the decrease in energy of the combined system is, 1 4 C V 1 2 - V 2 2, 1 4 C V 1 2 + V 2 2, 1 4 C V 1 + V 2 2, 1 4 C V 1 - V 2 2

MARKS App · Accepted Answer

Δ U= decrease in potential energy =U i - U f = 1 2 C V 1 2 + V 2 2 - 1 2 2 C V 1 + V 2 2 2 = 1 4 C V 1 - V 2 2

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