)
Solution
(a) In the given network, C1, C2 and C3 are connected in series The
effective capacitance C¢ of these three capacitors is given by
1
2
3
1
1
1
1
C
C
C
C
=
+
+
′
For C1 = C2 = C3 = 10 mF,  C¢ = (10/3) mF The network has  C¢ and C4
connected in parallel Thus, the equivalent capacitance C of the
network is
C = C¢ + C4 = 10
3
+10


  mF =13