Obtain the equivalent capacitance of the network shown in figure below. For a 300 V supply, determine the charge and voltage across each capacitor.

A similar network is drawn below as given in the problem.
Here,

straight C subscript 1 space equals space straight C subscript 4 space equals space 100 pF straight C subscript 2 space equals space straight C subscript 3 space equals space 200 pF

Assume that the series combination of C₂ and C₃ is C₂₃.

1 over straight C subscript 23 space equals space 1 over straight C subscript 2 plus 1 over straight C subscript 3 space equals space 1 over 200 plus 1 over 200 space equals space 1 over 100

or,

straight C subscript 23 space equals space 100 pF

A similar network is drawn below as given in the problem.Here,

Suppose that the parallel combination of C₁ and C₂₃ is C’ which is given as

straight C apostrophe space equals space straight C subscript 1 plus straight C subscript 23 space equals space 100 plus 100 space equals space 200 pF

Let the series combination of C₄ and C is C which is given as

1 over straight C space equals space 1 over straight C subscript 4 plus fraction numerator 1 over denominator straight C apostrophe end fraction space equals space 1 over 100 plus 1 over 200 equals 3 over 200

or,

straight C space equals space 200 over 3 pF

Total charge on all capacitors.
A similar network is drawn below as given in the problem.Here,

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