Two capacitors of `10 pF` and `20 pF` are connected to 200 V and 100 V sources, respectively. If they are connected by the wire, then what is the common potential of the capacitors?

Two capacitors of 10 PF and 20 PF are connected to 200 V and 100 V sources respectively. If they are connected by the wire, what is the common potential of the capacitors ?

Two parallel plate capacitors of capacitances 1 pF and 2 pF are connected to the batteries of 100 V and 150 V as shown in the figure (r ). Calculate the potential difference across each capacitor.

Two capacitors of capacitance 20.0 pF and 50.0 pF are connected is series with a battery of 20 V. Find the energy supplied by the battery.

Two capacitors of capacitance 600 pF and 900 pF are connected in series across a 200 V supply. Calculate (i) the effective capacitance of the combination, (ii) the pd across each capacitor and (iii) the total charge stored in the system.