VITEEE 2017 Paper

Consider the potential at D be 'V’.
Potential drop across C1 is (V - V1) and C2 is (V2 - V)
∴ q1 = C1 (V - V1) , q2 = C2 (V2 - V)
As q1 = ‌2 [capacitors are in series]
∴ C1 (V - V1) = C2 (V2 - V)
V =

C1V1+C2V2

C1+C2