What is the capacitance of a parallel-plate capacitor?
A student has three capacitors: two are $4.0\,\mu\text{F}$ and one is $8.0\,\mu\text{F}$. Draw a labelled circuit diagram for each case to show how the three capacitors can be connected so that the total capacitance is $1.6\,\mu\text{F}$.
A student has three capacitors: two are $4.0\,\mu\text{F}$ and one is $8.0\,\mu\text{F}$. Draw a labelled circuit diagram for each case to show how the three capacitors can be connected so that the total capacitance is $10\,\mu\text{F}$.
A capacitor $C$ with capacitance $47\,\mu\text{F}$ is placed across the output terminals of a bridge rectifier, as shown in Fig. 6.1. Fig. 6.2 shows how the potential difference $V$ across the resistor $R$ changes with time $t$. Use the information in Fig. 6.2 to determine the energy transferred from capacitor $C$ to resistor $R$ between $t_1$ and $t_2$.