MHT CET 2024 Physics question
Two identical capacitors have the same capacitance 'C'. One of them is charged to potential and other to . The negative ends of capacitors are connected together. When positive ends are also connected, the decrease in energy of the combined system is
Answer: (4)
Solution
Initial energy: . Positive plates are joined to each other and so are the negative plates (parallel connection), so the total charge is conserved and shared on a total capacitance . The common potential is \dfrac{CV_1 + CV_2}{2C}\dfracV_1$ +
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