Define what is meant by the capacitance of a parallel plate capacitor.
State three separate functions of capacitors in electrical circuits.
A student has three capacitors, each with capacitance $12\,\mu\text{F}$. Draw a diagram to show how the student connects the capacitors to produce a combined capacitance of $18\,\mu\text{F}$ between the terminals.
A student has three capacitors, each with capacitance $12\,\mu\text{F}$. Draw a diagram to show how the student connects the capacitors to produce a combined capacitance of $8\,\mu\text{F}$ between the terminals.