Three uncharged capacitors of capacitane `C_1 = 1muF, C_2 = 2muF and C_3 = 3muF` are connected as shown in figure to one another and to points A, B and D potential `phi_A = 10V, phi _B = 25V and phi_D` = 20 V, Determine the potential `(phi_0)` at point O.

Options

A. 20 V
B. 30 V
C. 40 V
D. 10 V

Answer

A