Three uncharged capacitors of capacitance 
, 
and 
are connected in series, as shown in the figure below.
A charge of 
is put on plate A of the capacitor of capacitance .
State and explain the charges that will be observed on the other plates of the capacitors. You may draw on the figure above if you wish.
Use your answer in (a) to derive an expression for the combined capacitance of the capacitors.
will be induced on the other plate of the capacitor of capacitance 
of the capacitors is given by
