Two identical capacitors have the same capacitance C

PHYSICS · Single correct · CBSE · Physics · Electrostatic Potential and Capacitance · Electrostatic Potential and Capacitance

Problem

Two identical capacitors have the same capacitance C. One of them is charged to potential V1 and the other V2. The negative ends of the capacitors are connected together. When the positive ends are also connected, what is the decrease in energy of the combined system? (1) 14C(V12−V22)\frac{1}{4}C(V_1^2 - V_2^2) (2) 14C(V12+V22)\frac{1}{4}C(V_1^2 + V_2^2) (3) 14C(V1−V2)2\frac{1}{4}C(V_1 - V_2)^2 (4) 14C(V1+V2)2\frac{1}{4}C(V_1 + V_2)^2

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