Complete Question
The complete question is shown on the first uploaded image
Answer:
The final voltage across X is
Explanation:
First we are going to obtain the equivalent capacitance for the whole circuit
to do this we will first find the capacitance of the capacitors connected in series
This can be mathematically evaluated as
Substituting values
Now the equivalent capacitance of the capacitors connected in series which is connected in parallel to
So the equivalent capacitance of the whole circuit is mathematically evaluated as
Substituting values
Now the total charge stores in these capacitors is mathematically evaluated as
Substituting values
When Switch is closed the capacitor
do not current anymore which implies that it has been excluded from the circuit
Hence the equivalent capacitance becomes
Now at the point is closed the Voltage across the capacitor
sis mathematically represented as
