
In the circuit shown below the switch is closed at For , the current in the capacitor in terms of total current is



Important Questions on Capacitance
A capacitor of capacitance is charged to a potential difference . The charging battery is disconnected and the capacitor is connected to a capacitor of unknown capacitance . The potential difference across the combination is . The value of should be

The charge on each of the capacitors after the switch is closed in figure is:

The switch shown in figure is kept closed for a long time and then opened at then the current in the middle resistor at is

The distance between the plates of a parallel plate condenser is . If a copper plate of the same area but thickness is placed between the plates then the new capacitance will become


The effective capacitance of the system in adjoining figure will be,

In the adjoining diagram, two geometrically identical capacitors and are connected to a battery. Air is filled between the plates of and a dielectric is filled between the plates of then

