Question $1(5$ marks$)$

Consider a capacitive Wheatstone bridge circuit with two fixed capacitors $(C_0)$ and a differential capacitor pair $(C_{w1}$&$C_{w2})$ also with parasitic capacitance CP$.$ The fixed capacitor's electrode is $200m200m$ and two parallel electrodes are overlapped $100\%.$ The gap between two electrodes is $3m$ and it is filled with air. If $C$ is $1fF,CP$ is $1pF,V$ is $1$ V $,$ what is the Wheatstone bridge circuit's output voltage