Question

If C1=3 pf and C2=2pf ,calculate the equivalent capacitance of the given network between points A and B.

Answer 1

1 C1 , C2 & C3 are in series
C= 6/7 Pf
C2 & C are in series
C
’ == 20/7 Pf
C1, C
’ & C1 are in series
C
’’
= 60/61 pF

Answer 2

C1 = 3PF & C2 = 2PF

1/Cs = 1/C1 +.......... 1/Cn

1/Cp = C1 +.......... Cn

1/Cs=1/3PF + 1/3PF + 1/2PF

Cs = 6PF/7

Cp = 6PF/7 + 2PF

Cp = 20PF/7

1/C = 7/20PF + 1/3PF + 1/3PF

C = 60PF/61