A two identical and parallel plates capacitor is connected to a voltage of 
. The distance between the plates is 
and the area of each plate is 
. The permittivity of free space is given as 
.
What is the capacitance of the capacitor?
How much electric charge can the capacitor store?
What is the energy stored in the capacitor?
What is the energy stored in the capacitor if the dielectric between the plates is replaced with a glass of relative permittivity 7?
How much charge is stored if we now connect another identical capacitor in series with this capacitor without changing the dielectric between the plates?
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