An electric bulb, a capacitor, a battery and a switch are all in series in a circuit. How does the intensity of light vary when the switch is turn on?

Five identical capacitors, of capacitance $20 \mathrm{\mu F}$ each, are connected to a battery of $150 \mathrm{V},$ in a combination as shown in the diagram. What is the total amount of charge stored?

A capacitor of capacitance $C$ is connected in series with a resistance $R$ and $DC$ source of emf $E$ through a key. The capacitor starts charging when the key is closed. By the time the capacitor has been fully charged, what amount of energy is dissipated in the resistance $R?$