Explain what is meant by the capacitance of a parallel plate capacitor.
Three parallel plate capacitors each have a capacitance of 
. Draw circuit diagrams, one in each case, to show how the capacitors may be connected together to give a combined capacitance of
Two capacitors of capacitances 
and 
are connected in series with a battery of electromotive force (e.m.f.) 
, as shown in the figure below.
Calculate the combined capacitance of the capacitors.
Use your answer in (i) to determine, for the capacitor of capacitance , the charge on one plate of the capacitor.
.
.
