What is the effective capacitance between points `X` and `Y` ?

What is the effective capacitance between point A and B in the given figure?

What is the effective resistance between points P and Q?

What is the effective resistance between points A and B?

What is the effective resistance between points P and Q?

In the figure shown, the effective capacitance between the points A and B , if each has capacitance C , is

In the figure shown, the effective capacitance between the points A and B , if each has capacitance C , is

All capacitors used in the diagram are identical and each is capacitance C .Then the effective capacitance between the points A and B is

For the arrangement of capacitors as shown in the circuit , the effective capacitance between the points A and B is (capacitance of each capacitor is 4 muF )