Two large area parallel plate capacitors, labeled P and N, are connected as shown in the figure below. The charge on each plate is indicated in the figure, in μC.
_________
Q=+19| |Q=+35
Q=-19 | |Q=-35
N---------P
a) The capacity of P (on the right) is 28.5 μF. Calculate the capacity of N.
b) The plate separation of capacitor of P (on the right) is doubled. Calculate the new value of the charge on N.
c) Calculate the new value of the total potential energy stored (in N and P , after the doubling of P's plate separation).

Question

Two large area parallel plate capacitors, labeled P and N, are connected as shown in the figure below. The charge on each plate is indicated in the figure, in μC. 
               _________
Q=+19|                  |Q=+35
Q=-19 |                  |Q=-35
            N---------P
a) The capacity of P (on the right) is 28.5 μF. Calculate the capacity of N. 
b) The plate separation of capacitor of P (on the right) is doubled. Calculate the new value of the charge on N. 
c) Calculate the new value of the total potential energy stored (in N and P , after the doubling of P's plate separation).