Several capacitors are connected as shown in figure. If the charge on the  5  μF capacitor is 120  μC, the potential between points A and D is

Potential difference across 5F capacitor is 120/5= 24 V. Hence, potential difference across all three capacitors connected in parallel is  V1=24  V. V1=V(C2C1+C2)or V=V1(C1+C2C2)=24[12+44]=96 V∴Vab=V=96  VVAD=V(630+6)=96[630+6]=16  V