When a capacitor is connected to the DC source, it will charge gradually until the charging voltage of capacitor becomes equals to the externally applied supply voltage of the source (i.e. connected capacitor is fully charged). Then, DC current will no longer flows through it because an insulator (air or a dielectric) separates the capacitor’s electrode plates. So, no DC current can flow unless the insulation layer gets disintegrates.
First, small amount of dc current flows through the capacitor for few seconds during charging until voltage across the capacitor becomes equal to the supply voltage after that capacitor completely blocks dc current to pass through it resulting open circuit.
Conclusion
Hope, you have clearly understand what happen when a capacitor is connected to dc supply. Make sure to leave your opinion and suggestion about this post in the comment section below.