Question
A capacitor of capacitance of ‘C’ is being charged by connecting it across a dc source along with an ammeter. Will the ammeter show a momentary deflection during the process of charging? If so, how would you explain this momentary deflection and the resulting continuity of current in the circuit? Write the expression for the current inside the capacitor.
Solution
When capacitor is charged by a dc source, ammeter will show a momentary deflection because of the presence of displacement current.
Conduction current is equal to the displacement current.
i.e., 
Resulting continuity of current becomes zero because, is maximum when, capacitor is fully charged.
